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  • Back cover for cell phone
  • synthetic rubber
  • for Samsung Galaxy S21 Ultra 5G
  • polycarbonate
  • black
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Get moving with Commuter Series, the slim, protective Galaxy S21 Ultra 5G case that keeps your phone safe from drops and bumps. Additionally, a silver-based antimicrobial additive is integrated into the case that helps inhibit microbial growth and defends the case exterior against many common bacteria. Weaving the additive into the case materials ensures it keeps protecting your case 24/7/365 and outlasts heavy use. Built to beat the daily grind, Commuter Series combines a pocket-friendly profile with robust defense and added grip to ensure you keep going mile after mile.
Availability: 18 units In Stock

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OtterBox Commuter - back cover for cell phone
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OtterBox Commuter - back cover for cell phone is rated 3.80 out of 5 by 62.
Rated 5 out of 5 by from Great case! Great low profile case. Perfect for on-the-go! Easy install.
Date published: 2022-02-27T00:00:00-05:00
Rated 5 out of 5 by from Extremely disappointed I have had my phone less then a year... since we got the phones literally on release date this was one of the only case options. I am a diehard otterbox person but this case is CRAP. I am on replacement number 3 with no avail. The case stretches out about about 3 months and then doesn't fit the phone properly for the protection. This is not the otterbox quality I am use to nor expect.
Date published: 2022-02-07T00:00:00-05:00
Rated 5 out of 5 by from good case at a reasonable price I bought this about a month ago and it works well with my G21 Ultra. Easy to install and add the neck strap so I can keep the phone in my shirt pocket.
Date published: 2021-03-09T00:00:00-05:00
Rated 5 out of 5 by from Worth the money This is my second Otter box phone case and it's saved me having to purchase phone insurance for cracked screens and damaged phone cases. I've had numerous drops and a toddler throwing the phone and no damage. The only damaged I ever incurred was when I dropped my keys on the screen scratching it which is the only open area the Otter box doesn't protect. The cost of the Otter box compared to a $1,000 phone pales in comparison. Otter box has a loyal customer for life!
Date published: 2021-02-22T00:00:00-05:00
Rated 5 out of 5 by from Already Saved My Brand New Phone Just got my new S21 Ultra a few weeks ago... Took the dogs on a quick run and my phone managed to work it's way out of my pocket and fell directly on hard concrete, bouncing several times. I was sure it was done, however this case saved it! Not even a scratch.
Date published: 2021-03-10T00:00:00-05:00
Rated 5 out of 5 by from A long time Galaxy S* Otterbox Commuter customer I have been using Otterbox Commuters (only had a Defender one time with my various Galaxy S phones for years. Like my previous Commuters, this one for S21 Ultra is 5 stars. Even better than the one I had for my S10+ because it is easier to re-insert the phone back into the case after use on the charging pad.
Date published: 2021-02-17T00:00:00-05:00
Rated 5 out of 5 by from Most trusted phone protection We have been using the Otterbox Commuter series for every phone my wife and I have owned over the last several years, and our phones were protected and consistently traded in pristine condition for the next generation.
Date published: 2021-02-19T00:00:00-05:00
Rated 5 out of 5 by from Amazing purchase Great phone protection, I have dropped my phone few times and not damaged, only downside is little bit bulky
Date published: 2021-03-02T00:00:00-05:00
Rated 5 out of 5 by from Good box I'm glad that I bought it. It is very sturdy and strong.
Date published: 2021-03-06T00:00:00-05:00
Rated 5 out of 5 by from Okay Case doesn't work well with wireless chargers or wired chargers. But other than that it's good.
Date published: 2021-03-01T00:00:00-05:00
Rated 5 out of 5 by from Good protection, a little slippery to hold Quick shipping, good protection. My only complaint is that the case is a bit slick. I haven't had an issue with it, but you definitely need to be careful.
Date published: 2021-03-10T00:00:00-05:00
Rated 5 out of 5 by from Great cover workout being bulky I have had this case for 3+ years on my old phone and bought a new one for the phone I just ordered . I couldn't tell you how many times I've dropped my phone and yet I've got no scratches or cracks. It works without being built like a tank. Otterbox cases are well worth the money.
Date published: 2021-03-15T00:00:00-04:00
Rated 5 out of 5 by from Otterbox nails it again! Just like all the others before, this is a fantastic case. If you don't have this case you should stop looking and just order it.
Date published: 2021-02-21T00:00:00-05:00
Rated 5 out of 5 by from Awesome cellphone case Great case, could use more support on the upper left side.
Date published: 2021-02-23T00:00:00-05:00
Rated 5 out of 5 by from Protects I haven't had it long but I know that it will protect my new phone.
Date published: 2021-02-16T00:00:00-05:00
Rated 5 out of 5 by from Great case. It's an Otterbox,enough said! Best phone case made.
Date published: 2021-02-21T00:00:00-05:00
Rated 5 out of 5 by from Exactly what I expected. I've had my case for about a month now and am as pleased as anyone could be.
Date published: 2021-03-10T00:00:00-05:00
Rated 5 out of 5 by from Best mid grade protection Happy with the fit, the plastic outer shell lasts longer than the rubber and doesn't stretch out over time like the other two options.
Date published: 2021-02-23T00:00:00-05:00
Rated 5 out of 5 by from So Far So Good I've had my Galaxy S21 Ultra in this case going on 3 weeks now and I feel confident in the level of protection it provides. I've dropped it twice - once from the couch to hardwood and once from my lap sitting in my truck to the concrete outside. Normally I would cringe, especially from the latter. I was quickly reminded why I've used Otterbox over the years aside from my last phone (which was a costly mistake). I cannot recommend this enough. If you want peace of mind for such an expensive investment, there's no better choice. Fits perfectly, protects fantastically.
Date published: 2021-02-14T00:00:00-05:00
Rated 5 out of 5 by from The best protection for your phone I've had an otterbox for almost a decade for each iteration of my phone. I've never broken or cracked a phone before. It does its job incredibly well.
Date published: 2021-03-01T00:00:00-05:00
Rated 5 out of 5 by from "OHHHH YEEAAHHH" - KOOLAID MAN Got it before I got my phone! Super Quick shipping and very durable!
Date published: 2021-02-11T00:00:00-05:00
Rated 5 out of 5 by from Good product Good protection,looks great,well made,fits perfect
Date published: 2021-03-15T00:00:00-04:00
Rated 5 out of 5 by from It's Blue It works just fine - but it is blue. (I don't know what I thought I was getting color wise, but this wasn't it.
Date published: 2021-02-23T00:00:00-05:00
Rated 5 out of 5 by from Good products This is my third Otterbox i got this one for my new Galaxy s21 Ultra and love it! Real good products
Date published: 2021-03-16T00:00:00-04:00
Rated 5 out of 5 by from Good quality The case does not fit right at the top corners. They tend to try and pop off. Firs time I have had a problem with otterbox fit.
Date published: 2021-04-15T00:00:00-04:00
Rated 5 out of 5 by from not enough grip on the case This is a great case for protection, however, there is room for improvement. This case is composed of 2 pieces, the inner hard rubber, and the outer hard plastic. The plastic outer has little to no grip, and the hard rubber isn't grippy either. The sides of the case do have serrations, but not at the place one's put their fingers. Consequently, it is quite difficult to get a proper secure hold of the phone. Especially, when you are taking pictures near a cliff or a ledge, you might want to hold the phone extra firm but the case provides little grip. It is quite frustrating.
Date published: 2021-04-15T00:00:00-04:00
Rated 5 out of 5 by from I love it it is the best product for my new Galaxy I bought about 3 weeks ago and it is a great product plus is protecting my investment .
Date published: 2021-04-14T00:00:00-04:00
Rated 5 out of 5 by from It is alright The back side is smooth. Meh! It could be textured so it does not slide when you set it down. Other than that it is sturdy
Date published: 2021-04-11T00:00:00-04:00
Rated 5 out of 5 by from Great case When I get a new phone the first thing I do is buy an otterbox case to protect it. This is the third phone I have had with the Commuter case. It is fantastic. It is provides protection but is still sleek enough to fit in my pocket.
Date published: 2021-03-25T00:00:00-04:00
Rated 5 out of 5 by from Worth the purchase Every Samsung phone I own, I've always used an Otter Box. Even though the Galaxy S21 has multiple cameras it has fell a couple of times on concrete and the case held up and did not see a single scratch on the phone. Definitely worth the purchase!
Date published: 2021-04-27T00:00:00-04:00
Rated 5 out of 5 by from It's protective but has serious flaws I bought the case when I got my new phone and the corner where the power button is, just sticks out... bugs my ocd so much the case is great besides that.
Date published: 2021-05-17T00:00:00-04:00
Rated 5 out of 5 by from Great purchase !!! Already saved my phone alot...Glad I bought an Otterbox!!!
Date published: 2021-06-16T00:00:00-04:00
Rated 5 out of 5 by from Does not fit as well as previous OtterBox cases. Very nice case, but if you look at it, it does not fit well where the volume buttons are, you see a bit of a space while looking at the phone.
Date published: 2021-06-14T00:00:00-04:00
Rated 5 out of 5 by from Good case but I have a galaxy s21 ultra and I bought the commuter case for it, it's a great case but I dropped my phone once and it cracked the back plastic and the upper right hand corner where the power button and volume buttons are located, it started to come apart. The plastic part is slowly outstretching and it's annoying .
Date published: 2021-06-21T00:00:00-04:00
Rated 5 out of 5 by from Works well... Had it a few weeks, works well. Previous Otterbox was a more robust model with flexible material on outside. It stretched out over the 3 years I had it. This has flexible on the inside with hard case on outside. Glad it didn't come with the clip. Just wish there were more colors. Women are Commuters also and a deep wine or other feminine color besides blue and black would be better.
Date published: 2021-06-06T00:00:00-04:00
Rated 5 out of 5 by from Good idea bad execution This is usually my go to design for the cases of every phone I've had for some years now and they've always been good. Love the way they feel..I noticed by the camera was a lil loose and wondered if it would hold up.. it didn't, it's now really loose at the top right. Just a bit disappointed that it was overlooked when I could sense the problem from my first feel/like.
Date published: 2021-07-05T00:00:00-04:00
Rated 5 out of 5 by from Commuter series Case I bought this about three weeks ago great protection for my s21 ultra in not that think, fit in your pocket easily, is worth every penny.
Date published: 2021-07-07T00:00:00-04:00
Rated 5 out of 5 by from Provides Protection Great purchase. I bought this before I received my new phone and it came out of the box and went straight in. It's not as bulky as people make it seem. It's about the same size as a standard case. I upgraded from a Galaxy S7 so obviously the phone is much larger and I didn't notice a difference in case thickness. Regardless, since I purchased it less than a month ago, I have dropped it once on pavement. Getting out of my car my phone fell out of my pocket and onto pavement in a parking lot. The corner was scuffed, but my phone was fine! When I rubbed the scuff to see if the case was scratched or not, the scuff came off too! All is well. Buy this case.
Date published: 2021-05-28T00:00:00-04:00
Rated 5 out of 5 by from Not as comfortable as earlier products I've use otterbox on several phones. Their rubber was softer. (More grippy. Not sure why new otter cases are hard rubber. I still have old cases to compare to.
Date published: 2021-05-26T00:00:00-04:00
Rated 5 out of 5 by from Oddly shaped The case does not fit snugly on my phone. It is lifted on one side and it does not look flattering,
Date published: 2021-06-01T00:00:00-04:00
Rated 5 out of 5 by from Best purchase for My phone. I bought this a few weeks ago,and so happyI did. Very easy to install and protective for My phone. I was telling My brother in PA to get these. He laughed and said everyone there gets Otter Box. And here I am in CO, their headquarters telling others. Thank You Otter Box.
Date published: 2021-07-22T00:00:00-04:00
Rated 5 out of 5 by from Started out good.... I purchased this case back in February and really loved it at first. It wasn't too bulky, felt like it protected the phone great, and I love the cover that goes over the charging port. That being said, a few months after purchase, I started to notice some stretching by the volume and power buttons. I tried to be easy with that area so it wouldn't stretch anymore, but it got worse and worse. Now it's to the point that it barely covers the buttons, and they usually won't work if I tried to press them through the case. I'm really disappointed because now I need a new case altogether and this was my favorite design. Obviously I don't want to buy the same one again, so I tried the Symmetry series case that I could customize ($70 but it's VERY thin and I didn't care much for it. I don't want to spend $70 on ANOTHER case, so now I'm back to the stretched out one. I just feel like for the price and the brand, their products should last longer or not have defaults.
Date published: 2021-08-16T00:00:00-04:00
Rated 5 out of 5 by from Won't use anything BUT OtterBox! Each time I get a new phone, it immediately goes into a new Commuter case with a Alpha Flex screen protector. The combination is sturdy but not bulky and, when I go to a new phone, the old one looks as good as it did when brand new.
Date published: 2021-08-16T00:00:00-04:00
Rated 5 out of 5 by from Great product! I purchased this one for my wife and she likes it. It is not as bulky as the Pelican brand she had before. Thanks for a great product.
Date published: 2021-08-13T00:00:00-04:00
Rated 5 out of 5 by from LOVE THIS CASE I originally purchased this case from Walmart a month ago and the rubber part came loose after a week. I contacted support and was sent a replacement immediately. The replacement case arrived damage upon shipping ! I notified them once again and another case was sent with no issues whatsoever. The case has been on my device for two weeks now and I have had no issues. It also works well with my screen protector by amFilm.
Date published: 2021-09-05T00:00:00-04:00
Rated 5 out of 5 by from Its ok but i do have a concern I got this from Amazon and it arrived September 13 and its already loose around the top and camera. This is my first time using an otter box so it might be normal but i thought i should voice my concerns. Ill probably try another otter box case instead of this one maybe the defender series.
Date published: 2021-09-17T00:00:00-04:00
Rated 5 out of 5 by from Tough but slippery I bought the case recently and I am considering returning it for another brand. It is a tough case, I'm sure. it fits well and looks ok, although it has the typical utilitarian, look of an Otterbox. The company clearly doesn't care about looks when they design their cases, but that isn't what they go for. They go for toughness and in this case, that's a good thing. The case is quite slippery and the design on the outside is a little baffling in this regard. The top half of the case has rubberized grips along the sides so that when you hold it up there, the feel and grip is fairly secure. But the lower half of the case, where most people will actually hold it, is very slick. The back is hard plastic as well and very slick with no grip. The phone has slipped, but not fallen a few times already. I'd look for alternatives if I were you. As I said, I will likely return this one. Even though it likely does its job against breakage due to falls, it WILL likely fall due to the design and slippery surfaces. I don't want to take the risk on an expensive phone and case!
Date published: 2021-10-04T00:00:00-04:00
Rated 5 out of 5 by from Poor Design I've had the commuter series for the past 3 generation of phones, each exceeding expectations. This case however, stretched out in just a few weeks. I started a warranty claim and received a new case. Several weeks later the new case stretched out again. At this point I realized that its the design problem with the case. I called customer service to try to get a refund or get a different case, but the representative refused, he did offer to get me a new Commuter Series case and wave the shipping cost, but I do not want to call customer service every 3 weeks to replace defective case.
Date published: 2021-08-02T00:00:00-04:00
Rated 5 out of 5 by from Poor Design This Time I've always purchased Otterbox phone cases and have been happy with them - they've usually been rock solid. However, this case wasn't designed as well as previous ones. Basically, the hard "shell" part of the case doesn't wrap around the top, right corner of the inner, silicone "sleeve". Given that the sleeve is slightly too big towards the top, it curves out and away from the phone, leaving a gap for dust to get in (see photos. It also is just annoying to always have this bubble when holding the case. The case is not bad otherwise - this issue kinda ruined it for me though. Would be happy to update this review if Otterbox is able to help with this issue.
Date published: 2021-07-23T00:00:00-04:00
Rated 5 out of 5 by from Poor design, doesn't fully protect phone I've used Otterbox in the past and really liked how well the case protected my phone, sow when I bought a new phone earlier this year I didn't hesitate to pay the high price for this case. Unfortunately, it hasn't even been 6 months and the case is warping from the phone around the volume buttons - enough where I can see the edge of the phone. This phone was incredibly expensive so I wasn't surprised that the cases for it would be, too, but I'm finding myself having to spend another $50-70 on a new case just to feel that it's being fully protected. I'm hoping that Otterbox will correct the flaw and provide free replacements ASAP.
Date published: 2021-07-26T00:00:00-04:00
Rated 5 out of 5 by from Great product Great product! Very durable, I recommend it!!! Sturdy
Date published: 2021-07-29T00:00:00-04:00
Rated 5 out of 5 by from A little Disappointed So I have a problem with Technology I always want the newest stuff and I work in construction so I'm quite rough on my phones. My normal goto case is the defender, but I thought I would give something less bulky a try and It's okay just not great.
Date published: 2021-07-23T00:00:00-04:00
Rated 5 out of 5 by from Works great I love my Otterbox cases! I always buy atleast 3 so I can change up the color or style for certain things. They protect my phone very well.
Date published: 2021-08-30T00:00:00-04:00
Rated 5 out of 5 by from Doesn't retain shape After a few months of using this. The constant in and out of my pocket has made the rubber part not sit on the phone anymore. Right above the volume buttons the case has about an 1/8th of an inch gap between the inside of the case and the phone. A lot of times the case just pulls right off the phone when taking it out of my pocket. Other than that it isn't too bad, but I wouldn't recommend if you are going to be keeping it in your pants pocket.
Date published: 2021-11-02T00:00:00-04:00
Rated 5 out of 5 by from Could be improved This particular case is not too bulky but it is rather hard feeling and Too slippery. My phone fell off the edge of a counter and hit just right and cracked the screen when it hit the tile floor. It would also be nice it it had a slide Camera protector.
Date published: 2021-10-22T00:00:00-04:00
Rated 5 out of 5 by from Good not great. Top right of case is loose and continues to stretch.
Date published: 2021-10-29T00:00:00-04:00
Rated 5 out of 5 by from The service provided was excellent. I bought my Otterbox case for my S21 Ultra about a month ago. This is the second phone I have had an Otterbox case for.. The lady at Otterbox who helped me place the order was new there. Keep her if you can. She was extremely helpful. Said she had recently started working there. Got me exactly what I wanted. Quick delivery. Fits like a glove. Thank you so very much!! I can't imagine I will ever buy any other brand case for my phone. This Otterbox is very nice.
Date published: 2021-11-12T00:00:00-05:00
Rated 5 out of 5 by from abnormal wear and tear with normal usage this product has stretched and become misshapen over the course of 6 months I am normally a big fan of OB products in this line, but this one missed the mark.
Date published: 2021-12-15T00:00:00-05:00
Rated 5 out of 5 by from Doesn't Hold Up Seems to be of quality construction - but the engineering of the case is flawed because after a few months of use the right top of the case loses its shape to the point that I now find that the volume buttons on the case are no longer aligned with the phone's volume buttons. Otterbox produces quality products and it's disappointing that they let this design go into production.
Date published: 2022-04-08T00:00:00-04:00
Rated 5 out of 5 by from Doesn't Hold Up - Bad Design I bought this case and was worried about the case stretching, especially by the top, more specifically on the top right by the camera. Too bad I only noticed after I dropped my phone. Good thing I had a screen protector that cracked instead of my screen. I usually love Otterbox, so I bought another. Seemed to fit well, but it's been under 4 months, and both sides are stretched out, giving no protection.
Date published: 2022-04-12T00:00:00-04:00
Rated 5 out of 5 by from Bad Design As noted in other reviews for other phones, the Commuter series degrades in the upper left corner extending down below the power button. The result is that the rubber surrounding the phone begins to pull away and arch about an 1/8" out from the phone and can be easily expanded further by simply sliding your finger up the inner slide on the glass. This degradation also occurs on the left side, but does not bow out as much. There are two major issues with this: (1 The volume buttons become very difficult to press. You end up having to wiggle it slightly to get the rubber to seat on the button. (2) If you drop your phone in this condition and you are unlucky enough to have it land on that corner, it will crack the screen. Happened to me and now I have a broken screen. I do prefer the the Commuter over the Defender and have been using the Commuters since I had a Samsung S3. The added bulk of the Defender is a turn off, but may be the better route due to this design issue. This issue isn't new; I experienced it with my S5, S6, S8, and S10 also. I've attached a picture showing the flaw (and resulting cracked screen :-( ).
Date published: 2022-08-17T00:00:00-04:00
Rated 5 out of 5 by from stretching next to camera I like the case I bought this one because it had the cover for the charging port just disappointed that the rest of the case is not what I had hoped.
Date published: 2022-07-11T00:00:00-04:00