The Apple Watch Ultra 4 costs around $980, and Apple doesn’t offer a display-only repair. So a case for $12 to $24 is an easy argument. The only question is which one. I tested three very different ones: a thick rubber case from Spigen, one made entirely of metal, and the best-selling case on Amazon with a built-in screen protector.
I checked each against the same points: price, what’s in the box, weight, whether sensors get covered, whether only the frame or the display too is protected, whether a screen protector fits underneath, how band changes go, whether all buttons work, and whether you can still dive with it.
Spigen Rugged Armor: The Best to Operate
- Premium TPU Construction: Built to last with durable, shock-absorbent TPU that safeguards your watch against everyday wear and tear.
- Rugged and Timeless: Rugged carbon fiber detailing elevates the look of your smartwatch, offering timeless design with robust protection
- Enhanced Screen & Bezel Defense: Raised edges strategically encase your watch, shielding the screen and bezel from unwanted scratches and dings
- Experience Full Functionality: Precise cutouts for Digital Crown, speaker, Action Button, and side button
- Check for Compatibility: Only compatible with Apple Watch Ultra 4 (2026), Apple Watch Ultra 3 (2025), Apple Watch Ultra 2 (2024, 2023), Apple Watch Ultra (2022)
About $16 | 6 grams | protects the frame only
The Spigen is a thick rubber case, and there’s nothing else in the box. At 6 grams you barely notice it on your wrist. Protection is solid, and it isn’t thin, so you can knock it against something without worrying.
What I like most are the buttons. The crown stays easy to reach, the side button has a clear, audible click, and the Action button feels clean too. Of the three, this is the nicest to use. The sensors stay clear, and the band change works without any contortions.
The catch: it only protects the frame, leaving the display exposed. And if you already have a large edge-to-edge screen protector on, the case won’t work. It lifted the glass right off as I fitted it. So you’ll need a smaller protector that stays inside the frame. Which ones are worth it is in my screen protector test for the Watch Ultra 4.
The Metal Case: Good Looking, Hard Work
- Compatible Models: Amizee case only designed for Apple Watch Ultra 4(2026)/3/2/1 49mm. NOTE: Please confirm your watch size before placing an order.
- Seconds Change Ultra 4/3/2/1: Simple, tool-free installation transforms the look of your watch in seconds, allowing you to enjoy the Ultra 4/3/2/1 wearing experience. The right knob of the case features an updated integrated watch crown cover.
- Military Grade Protection: Raised bezel around the screen for extra screen protection for effective shock absorption and drop protection. (Note: Does not include built-in screen protector)
- Metal Bezel Protection: Made of rugged armor durable aluminum metal material. The case snap-on design is easy to install and remove. Charge directly, without take off the case. Precise cutouts ensure seamless access to all watch ports, buttons and features of your Watch.
- What You Get: 1 x Black/Orange Apple Watch Case 49mm. If you have any about our Apple Watch Cases defect or quality issues, please feel free to contact us, our customer service will reply to you within 24 hours.
About $24 | 16 grams | protects the frame only
The metal case feels the most premium. You can’t squeeze it, the rim is real metal, and only the buttons and part of the bottom are plastic. If you like metal, this gives you exactly that.
Then there’s the weight: 16 grams. The watch itself weighs 62 grams, so you’re adding a quarter of its weight on top. You feel that.
Installation comes in two parts, and there are no instructions in the box. For several attempts the watch simply wouldn’t seat properly, sitting visibly lower on one side than the other. Only after flipping it around and starting over did everything click into place. At this price I don’t expect that.
The crown and side button work, though the click is quieter than on the Spigen. The Action button takes more force and is hard to find by feel, because there’s no raised marker.
My biggest objection: inside there are metal pins covered by nothing but a thin film, and that film presses in easily. To me it’s a matter of time before the frame underneath picks up scratches. With a proper inner lining this concept would be excellent.
The Best-Selling Case: The Only One with Screen Protection
- Compatibility: This apple watch protector with screen protector only applies to Apple Watch Ultra 4 & Ultra 3 & Ultra 2 & Ultra 49mm, Please choose the right protective case according to the model of your iWatch and note this case is not compatible with Milanese Loop band at this time
- Touching precision: 9H hardness of tempered glass, help to get rid of the watch screen scratch trouble. Hd display, give you the ultimate visual experience. When protecting the screen, the tempered glass will not affect your operation to your watch, and it can still accurately achieve the touch screen effect. 【Please note that this case is not suitable for swimming or sweaty sports】If the case has moisture in it, you could take off the case and wipe the moisture out
- Efficient protection: The comprehensive protective case protects every side of your watch. This cover comes with 9H tempered glass, and the high-strength hardened glass helps keep your screen from scratching and gives you a high-definition display experience. The case can effectively protect your beloved watch without making you feel bulky
- Delicate Design: This case built in screen protector is moulded one-to-one according to the iWatch Ultra 4 / Ultra 3 / Ultra 2 / Ultra 49 mm, and the hole position is precisely positioned to every detail of the watch. The hollow design of the crown is easy for you to adjust the watch. The button design of the cover, besides protecting your watch button, also makes it easier to press them
- Products Included: What you receive will be 2 black protective cases with screen protector. Choose us, for the high quality products and high quality service
About $12 for 2 pieces | 4 grams | protects frame and display
This is the cheapest case in the test, and you get two of them. The material is a matte plastic that feels better than the price suggests. At 4 grams it’s the lightest of the lot.
The key difference: the screen protector is already built in. So you get frame and display protection in one part and don’t need a separate glass. The touchscreen works unchanged, and I typed messages on the watch normally. The sensors stay clear, band changes are no problem, and it clips on in seconds.
Two catches: there’s a plastic rim around the crown that your finger catches on while turning. That gets annoying over time. And when diving, water gets under the built-in protector, after which the touchscreen stops responding reliably. If you actually dive with your watch, stay away from this one.
Verdict: Which Should You Get?
✓ Spigen Rugged Armor if operation matters to you and you’d rather run a separate, smaller screen protector anyway.
✓ The best-selling case if you want frame and display covered by one part and you don’t dive. At about $12 for two, that’s hard to beat.
✗ The metal case only if the look matters more to you than weight and installation, for climbing or long trips for example. For everyday use it’s too heavy for me, and too risky on the inside.
And if you know a good metal case with a proper inner lining, tell me under the video. I like the concept, just not this execution.
More Tests
For the Watch Ultra 4 I also tested three screen protectors, including a scratch test with a porcelain tile. And if you want to protect your iPhone, you’ll find my winners in the comparison of the best iPhone 18 Pro cases and in my iPhone 18 Pro screen protector test. For the foldable iPhone, see my tests of iPhone Duo cases and iPhone Duo screen protectors. My free Charge Check also shows how fast your charger really charges.