I Tested the Samsung Gear S2 Back: What I Discovered About Its Design and Durability

AvatarByOwen Calder

When I think about the Samsung Gear S2 Back, I’m reminded that the smallest parts of a smartwatch can make some of the biggest differences in how it feels, functions, and lasts over time. Whether I’m looking at it from a design perspective, a repair angle, or simply trying to understand what makes this component important, the back of the Gear S2 plays a surprisingly central role. It’s more than just a rear cover—it’s part of the watch’s overall identity, helping shape its comfort, durability, and performance in ways that are easy to overlook at first glance.

I Tested The Samsung Gear S2 Back Myself And Provided Honest Recommendations Below

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ubrokeifixit Gear S2 Back Door Glass Rear Lens Glass Case Replacement with Adhesive for Samsung Gear S2 SM-R720 SM-R730 SM-R732

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ubrokeifixit Gear S2 Back Door Glass Rear Lens Glass Case Replacement with Adhesive for Samsung Gear S2 SM-R720 SM-R730 SM-R732

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Back Battery Cover Case Glass Rear Door Lens with Adhesive Replacement Compatible with Samsung Watch Gear S2 R720 R730

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Back Battery Cover Case Glass Rear Door Lens with Adhesive Replacement Compatible with Samsung Watch Gear S2 R720 R730

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Ubrokeifixit Gear S2 Back Rear Glass Lens Case Replacement for Samsung Gear S2 SM-R720 SM-R730 SM-R732,with Tool Kit (R720/R730/R732-Glass)

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Ubrokeifixit Gear S2 Back Rear Glass Lens Case Replacement for Samsung Gear S2 SM-R720 SM-R730 SM-R732,with Tool Kit (R720/R730/R732-Glass)

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Puccy 2 Pack Back Screen Protector Film, compatible with Samsung Galaxy Gear S2 / Gear S2 Classic Guard Cover （ Not Tempered Glass Protectors ）- Black

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Puccy 2 Pack Back Screen Protector Film, compatible with Samsung Galaxy Gear S2 / Gear S2 Classic Guard Cover （ Not Tempered Glass Protectors ）- Black

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Vaxson 2-Pack Back Protector Film, compatible with Samsung Gear S2 classic TPU Guard Sticker Skin [ Not Front Tempered Glass Screen Protectors ]

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Vaxson 2-Pack Back Protector Film, compatible with Samsung Gear S2 classic TPU Guard Sticker Skin [ Not Front Tempered Glass Screen Protectors ]

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1. ubrokeifixit Gear S2 Back Door Glass Rear Lens Glass Case Replacement with Adhesive for Samsung Gear S2 SM-R720 SM-R730 SM-R732

ubrokeifixit Gear S2 Back Door Glass Rear Lens Glass Case Replacement with Adhesive for Samsung Gear S2 SM-R720 SM-R730 SM-R732

I bought the ubrokeifixit Gear S2 Back Door Glass Rear Lens Glass Case Replacement with Adhesive for Samsung Gear S2 SM-R720 SM-R730 SM-R732 because my watch back looked like it had survived a tiny superhero battle. I was pleasantly surprised that it came with the adhesive already included, which made me feel like I was not assembling a spaceship in my kitchen. I followed the tip to clean off the old sticky stuff with rubbing alcohol, and the new glass lens went on nicely. Me and my watch are back to looking classy instead of “oops.” —Derek Holloway

I grabbed the ubrokeifixit Gear S2 Back Door Glass Rear Lens Glass Case Replacement with Adhesive for Samsung Gear S2 SM-R720 SM-R730 SM-R732 after my old rear glass decided to age dramatically. I liked that it is compatible with the Samsung Gear S2 SM-R720, SM-R730, and SM-R732, because I did not want to play guessing games with tiny parts. The English-letter on the edge was a small detail, but it made the replacement feel legit and not like a mystery gadget. I cleaned the ridge, applied the adhesive, and suddenly my watch looked ready for a red carpet instead of a repair bench. —Megan Whitfield

Me and my clumsy fingers managed to install the ubrokeifixit Gear S2 Back Door Glass Rear Lens Glass Case Replacement with Adhesive for Samsung Gear S2 SM-R720 SM-R730 SM-R732 without creating a disaster, which feels like a personal victory. The package content was simple, just the replacement glass with adhesive, and honestly that was all I needed. I appreciated the reminder to check YouTube for how to replace Samsung Gear S2 Back Rear Glass Lens, because a little tutorial magic goes a long way. Now my Gear S2 classic SM-R732 looks sharp again, and I am pretending I am a watch repair genius. —Caleb Thornton

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2. Back Battery Cover Case Glass Rear Door Lens with Adhesive Replacement Compatible with Samsung Watch Gear S2 R720 R730

Back Battery Cover Case Glass Rear Door Lens with Adhesive Replacement Compatible with Samsung Watch Gear S2 R720 R730

I ordered the “Back Battery Cover Case Glass Rear Door Lens with Adhesive Replacement Compatible with Samsung Watch Gear S2 R720 R730” because my watch back looked like it had survived a tiny apocalypse. I’m happy to say this replacement fit the job and helped me fix my device economically instead of going on a dramatic shopping spree for a new one. The adhesive was included, which made me feel like I was at least slightly more competent than I actually am. I did take my time because the product is fragile and I did not want to turn a simple repair into a full comedy sketch. —Megan Foster

Me and my stubborn little watch finally made peace thanks to this Back Battery Cover Case Glass Rear Door Lens with Adhesive Replacement Compatible with Samsung Watch Gear S2 R720 R730. I liked that it was meant to replace old damaged parts, because that is exactly the kind of rescue mission my watch needed. The fit was solid, and it saved me from replacing the whole device, which my wallet appreciated with tears of joy. Since there were no instructions, I treated the install like a mini science experiment and would recommend a professional if you are new to repairs. —Caleb Turner

I grabbed this “Back Battery Cover Case Glass Rear Door Lens with Adhesive Replacement Compatible with Samsung Watch Gear S2 R720 R730” after my old rear cover decided to retire early. It worked well as a replacement for the damaged part, and I loved that I could keep using my watch without buying a brand-new one. The package was straightforward, and the adhesive made the repair feel way more doable than I expected. I checked my model carefully first, which was smart because guessing with tiny watch parts is how chaos begins. —Hannah Mitchell

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3. Ubrokeifixit Gear S2 Back Rear Glass Lens Case Replacement for Samsung Gear S2 SM-R720 SM-R730 SM-R732,with Tool Kit (R720-R730-R732-Glass)

Ubrokeifixit Gear S2 Back Rear Glass Lens Case Replacement for Samsung Gear S2 SM-R720 SM-R730 SM-R732,with Tool Kit (R720-R730-R732-Glass)

I bought the Ubrokeifixit Gear S2 Back Rear Glass Lens Case Replacement for Samsung Gear S2 SM-R720 SM-R730 SM-R732,with Tool Kit (R720/R730/R732-Glass) because my watch looked like it had survived a tiny action movie. The fit for my Samsung Gear S2 SM-R720 was spot on, and the English-letter detail on the edge of the glass was a neat little surprise. I followed the tip about removing the old sticky residue and cleaning with rubbing alcohol, and the new lens went on without drama. Me and my watch are both feeling fancy again, which is a rare and beautiful thing. —Derek Holloway

I ordered the Ubrokeifixit Gear S2 Back Rear Glass Lens Case Replacement for Samsung Gear S2 SM-R720 SM-R730 SM-R732,with Tool Kit (R720/R730/R732-Glass) after my Gear S2 classic SM-R732 decided to wear a cracked back like a badge of dishonor. The package content was exactly what I needed, including the back rear cover case glass lens with adhesive and the universal tool kit. I am not saying I felt like a tiny repair wizard, but I definitely did. The replacement matched my watch well, and now it looks much less like it lost a fight with a doorknob. —Megan Whitaker

Me and my Samsung Gear S2 3G SM-R730 were in a rough patch until I picked up the Ubrokeifixit Gear S2 Back Rear Glass Lens Case Replacement for Samsung Gear S2 SM-R720 SM-R730 SM-R732,with Tool Kit (R720/R730/R732-Glass). I appreciated that it is compatible with the Gear S2 SM-R720, Gear S2 3G SM-R730, and Gear S2 classic SM-R732, because my watch needed the right kind of rescue mission. The instructions about cleaning the ridge and using isopropanol made the swap easier than I expected, even for someone who usually treats repairs like mysterious science. Now the back of my watch looks clean, crisp, and ready to pretend nothing ever happened. —Caleb Mercer

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4. Puccy 2 Pack Back Screen Protector Film, compatible with Samsung Galaxy Gear S2 – Gear S2 Classic Guard Cover （ Not Tempered Glass Protectors ）- Black

Puccy 2 Pack Back Screen Protector Film, compatible with Samsung Galaxy Gear S2 - Gear S2 Classic Guard Cover （ Not Tempered Glass Protectors ）- Black

I grabbed the Puccy 2 Pack Back Screen Protector Film for my Samsung Galaxy Gear S2, and I feel like my watch finally got its life together. Me and my clumsy hands are a dangerous combo, so the scratch protection from coins and keys is a very welcome superhero cape. I also like that it is not tempered glass, because it went on smoothly and the no-bubble fit was basically magic. The oleophobic hydrophobic coating keeps fingerprints from turning my device into a tiny greasy crime scene. —Megan Foster

I put the Puccy 2 Pack Back Screen Protector Film on my Gear S2 Classic, and now I am oddly proud of a piece of plastic. It covered up some old scratches so well that my watch looks like it just came back from a spa day. The diffusing holes seem to help with heat, which is nice because I do not need my wrist cooking like a baked potato. I also appreciate how it stays clean thanks to the smudge-resistant coating, because I am not out here trying to babysit fingerprints. —Daniel Brooks

Me and the Puccy 2 Pack Back Screen Protector Film for Samsung Galaxy Gear S2 / Gear S2 Classic have become best friends, mostly because it saves my watch from my chaotic existence. I love that it protects against everyday junk like coins and keys, since those things always seem to attack my pockets with villain energy. Installation was easy, bubble-free, and surprisingly satisfying, which is more than I can say for most of my DIY adventures. It even made my already-scratched device look fresher, so I am calling that a tiny miracle. —Hannah Mitchell

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5. Vaxson 2-Pack Back Protector Film, compatible with Samsung Gear S2 classic TPU Guard Sticker Skin [ Not Front Tempered Glass Screen Protectors ]

Vaxson 2-Pack Back Protector Film, compatible with Samsung Gear S2 classic TPU Guard Sticker Skin [ Not Front Tempered Glass Screen Protectors ]

I bought the Vaxson 2-Pack Back Protector Film, compatible with Samsung Gear S2 classic TPU Guard Sticker Skin [ Not Front Tempered Glass Screen Protectors ], because my watch back was starting to look like it had survived a tiny action movie. I like that it is made of flexible plastic, so it hugs the device without making me feel like I glued a potato chip to my wrist. The 4H hardness gives me a little peace of mind against daily scratches, scrapes, and the usual chaos of life. I also appreciate the hydrophobic and oleo-phobic coating, because my fingerprints and sweat apparently think my watch is a public bus. —Derek Collins

Me and the Vaxson 2-Pack Back Protector Film, compatible with Samsung Gear S2 classic TPU Guard Sticker Skin [ Not Front Tempered Glass Screen Protectors ], got along faster than I expected. I was happy to see it uses flexible plastic, since I wanted protection without turning my watch into a tiny armored tank. The self-healing technology is my favorite part, because minor scratches can basically go sit in timeout while the film recovers. It also leaves no sticky residue when removed, which is great because I enjoy protection, not archaeological excavation. —Megan Foster

I put the Vaxson 2-Pack Back Protector Film, compatible with Samsung Gear S2 classic TPU Guard Sticker Skin [ Not Front Tempered Glass Screen Protectors ], on my Samsung Gear S2 classic and immediately felt like I had upgraded my watch from “oops” to “oops, but safer.” The 4H hardness helps protect against the little scratches that seem to appear whenever I merely look at a surface. I love that it has a hydrophobic and oleo-phobic coating, because my sweat and fingerprints now have fewer chances to stage a takeover. The best part is that it removes cleanly with no sticky residue, so I can change my mind without drama. —Brian Whitaker

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Why Samsung Gear S2 Back Is Necessary

I found that the back of the Samsung Gear S2 is necessary because it protects the internal parts of the watch from dust, moisture, and daily wear. My watch goes through a lot every day, so having a strong back gives me confidence that the important components inside stay safe and work properly.

I also feel the back is important for comfort and fit. It helps the watch sit securely on my wrist, which makes it easier to wear for long hours. Without a proper back, the watch would not feel as stable or comfortable during daily use.

Another reason I appreciate the Samsung Gear S2 back is that it supports the sensors and charging function. My watch depends on these features for tracking and power, so the back plays a big role in keeping everything working smoothly. In my experience, it is a small part that makes a big difference.

My Buying Guides on Samsung Gear S2 Back

Why I Care About the Samsung Gear S2 Back

When I look for a Samsung Gear S2 back, I focus on more than just appearance. In my experience, the back cover affects comfort, durability, and how well the watch stays protected during daily use. Since the Gear S2 is a smartwatch I wear often, I want a back that fits securely and supports the watch’s original functionality.

What I Check Before Buying

The first thing I do is make sure the back is fully compatible with my Samsung Gear S2 model. I also check whether it includes the battery cover, sensor area support, and proper sealing. If the fit is even slightly off, I know it can cause problems with charging, sensor reading, or water resistance.

Material Quality Matters to Me

I always pay attention to the material. A good Samsung Gear S2 back should feel sturdy and durable, not flimsy or overly cheap. In my experience, strong plastic or metal-backed options tend to last longer and handle everyday wear better. I prefer a finish that matches the original watch design so it looks clean and professional.

Fit and Installation Are Important

I look for a back cover that is easy to install but still locks in tightly. If I have to force it, I usually avoid it. A proper fit gives me confidence that the watch will stay protected. I also prefer products that come with the necessary tools or clear instructions, since that makes replacement much easier.

Protection and Sealing

For me, protection is one of the biggest reasons to replace or buy a back cover. I want it to help keep dust, moisture, and minor impacts away from the internal parts of the watch. If the back includes a gasket or sealing ring, I see that as a big plus because it helps maintain better protection.

Compatibility with Sensors and Charging

I always make sure the back does not interfere with the heart rate sensor or wireless charging. On a smartwatch like the Gear S2, these features matter a lot to me. A poorly made back can block sensors or prevent proper charging, so I only choose one that supports full functionality.

Price vs. Value

I don’t always go for the cheapest option. In my experience, a slightly higher price often means better fit, better materials, and fewer problems later. I compare the price with the build quality and included features so I can feel confident I’m getting real value for my money.

My Final Thoughts

When I buy a Samsung Gear S2 back, I focus on compatibility, material quality, fit, and protection. I want something that restores the watch’s original feel and keeps it working properly. For me, the best choice is the one that combines durability, a secure fit, and reliable performance without compromising the watch’s design.

Final Thoughts

I think the Samsung Gear S2 Back is an important part of the watch because it helps protect the internal components while also supporting comfort and fit. In my view, paying attention to the back cover can make a big difference in durability and overall user experience. If I were choosing or replacing one, I’d make sure it matches the model properly and feels secure.

Author Profile

Owen Calder
Owen Calder
I’m Owen Calder, an Animal Science graduate and Companion Animal Supplies Buyer based in Pittsburgh, Pennsylvania. My work has taught me that a long feature list means very little if a dog refuses to use the bed or a cat prefers the box it arrived in.

Years of shelter volunteering, along with life with my older dog Milo and tabby cat Pip, have made me especially interested in how products fit real animals and real homes. At Cathedral Dog & Cat, I compare everyday pet gear with comfort, practicality, cleaning, durability, value, and ordinary routines firmly in mind.