Smartwatch glass and case materials
Short answer: 106 models in our catalog list a screen glass, and 63 of them list sapphire. 207 list a case material. Titanium and stainless steel are listed on 49 and 37 models. A listed glass or material is a fact about the build, not a promise that the watch will not scratch or break.
Last verified September 26, 2026.
What the terms mean
Sapphire glass is very hard and resists scratches well, but it can still crack on a hard hit. Gorilla Glass is a strengthened glass that resists cracks better than plain glass. Mineral glass is the basic option. For the case, polymer is light, aluminium is light and common, and stainless steel and titanium are heavier or stronger and usually appear on higher tiers. The catalog records the name the maker uses.
Glass in the catalog
| Glass | Models | Brands |
|---|---|---|
| Sapphire | 63 | 12 |
| Sapphire (approx.) | 1 | 1 |
| Gorilla Glass | 27 | 12 |
| Mineral | 3 | 1 |
| Other | 13 | 9 |
| Not listed | 204 | 41 |
Case materials in the catalog
| Case material | Models | Brands | Models also listing sapphire |
|---|---|---|---|
| Polymer | 72 | 19 | 3 |
| Polymer (approx.) | 1 | 1 | 0 |
| Aluminium | 62 | 16 | 10 |
| Aluminium (approx.) | 6 | 4 | 0 |
| Titanium | 49 | 11 | 43 |
| Stainless steel | 37 | 15 | 16 |
| Other | 16 | 9 | 1 |
| Other (approx.) | 1 | 1 | 0 |
| Not listed | 96 | 24 | 2 |
Models that list sapphire and titanium
| Model | Brand | Battery, as listed | Water rating | Size |
|---|---|---|---|---|
| Amazfit Cheetah 2 Pro | Amazfit | - | 5ATM | 47 mm |
| Amazfit T-Rex 3 Pro | Amazfit | 25 days (approx.) | 10ATM | 48 mm |
| Amazfit T-Rex Dual Solar | Amazfit | - | 10ATM | 51.4 mm |
| Amazfit T-Rex Ultra 2 | Amazfit | Up to 30 days · 50+ GPS hours | 10ATM | 48 mm |
| Apple Watch Series 11 | Apple | Up to 24 hours | 5ATM | 42 / 46 mm |
| Apple Watch Ultra 2 | Apple | Up to 36 hours (72 hours in low power mode) | 100m · EN13319 | 49 mm |
| Apple Watch Ultra 3 | Apple | Up to 42 hours · 72 hours saver | 10ATM | 49 mm |
| Apple Watch Ultra 4 | Apple | Up to 50 hours · 84 hours saver | 10ATM | 49 mm |
| COROS Apex 4 | COROS | Up to 65 GPS hours (46 mm) | 5ATM | 42 / 46 mm |
| COROS Vertix 2S | COROS | 40 days · 118 GPS hours (approx.) | 10ATM | 50.3 mm |
| Garmin D2 Mach 2 Pro | Garmin | Up to 24 days | 10ATM | 51 mm |
| Garmin Enduro 2 | Garmin | - | 10ATM | 51 mm |
| Garmin Enduro 3 | Garmin | Up to 90 days (solar) · 320 GPS hours | 10ATM | 51 mm |
| Garmin Fenix 8 Pro AMOLED | Garmin | Up to 27 days (51 mm) | 10ATM | 47 / 51 mm |
| Garmin Fenix 8 Pro MicroLED | Garmin | Up to 10 days | 10ATM | 51 mm |
| Garmin Fenix 9 | Garmin | Up to 29 days (51 mm) | 10ATM | 43 / 47 / 51 mm |
| Garmin Fenix 9 Pro | Garmin | Up to 31 days · 57 days (solar) | 10ATM | 43 / 47 / 51 mm |
| Garmin Forerunner 970 | Garmin | Up to 15 days | 5ATM | 47 mm |
| Garmin Tactix 7 AMOLED | Garmin | - | 10ATM | 51 mm |
| Garmin Venu X1 | Garmin | - | 5ATM | 45.9 mm |
| Garmin quatix 8 Pro | Garmin | Up to 15 days | 10ATM | 47 mm |
| Garmin tactix 8 AMOLED | Garmin | - | 10ATM | 47 / 51 mm |
| Garmin tactix 8 Cerakote Edition | Garmin | Up to 29 days | 10ATM | 51 mm |
| Garmin tactix 8 Solar | Garmin | - | 10ATM | 51 mm |
| Huawei Watch 5 | Huawei | Up to 3 days (42) · 4.5 (46) | 5ATM | 42 / 46 mm |
| Huawei Watch 6 Pro | Huawei | Up to 4.5 days · up to 11 days in battery saver mode | 5ATM | 43 / 46 mm |
| Huawei Watch Fit 4 Pro | Huawei | Up to 10 days | 5ATM | 44.6 mm |
| Huawei Watch GT 5 Pro | Huawei | Up to 14 days (46) · 7 (42) | 5ATM | 42 / 46 mm |
| Huawei Watch GT 7 Pro | Huawei | Up to 12 days · 21 light-use | 5ATM | 46 mm |
| Huawei Watch Ultimate 2 | Huawei | - | 20ATM | 48 mm |
| OnePlus Watch 3 | OnePlus | Up to 5 days · up to 16 days in power saver mode | 5ATM | 47 mm |
| OnePlus Watch 4 | OnePlus | Up to 5 days · up to 16 days in power saver mode | 5ATM | 46 mm |
| OPPO Watch X3 | OPPO | Up to 5 days · up to 16 days in power saver mode | 5ATM | 47.4 mm |
| Polar Grit X Pro | Polar | - | 10ATM | 47 mm |
| Polar Grit X2 Pro | Polar | 10 days · 43 GPS hours (approx.) | 10ATM | 48.6 mm |
| Galaxy Watch 5 Pro | Samsung | 80 hours (590mAh) (approx.) | 5ATM | 45 mm |
| Galaxy Watch Ultra (2024) | Samsung | 590 mAh, up to 60 hrs (AOD on) / 100 hrs (Power Saving) | 10ATM | 47 mm |
| Galaxy Watch Ultra (2025) | Samsung | 590 mAh, up to 60 hrs (AOD on) / 100 hrs (Power Saving) | 10ATM | 47 mm |
| Galaxy Watch Ultra2 | Samsung | 800mAh · up to 4 days | 10ATM | 47 mm |
| Suunto Race 2 | Suunto | 16 days · up to 55 GPS hours (approx.) | 10ATM | 46 / 49 mm |
| Suunto Vertical | Suunto | Up to 60 days (solar) | 10ATM | 49 mm |
| Suunto Vertical 2 | Suunto | - | 10ATM | 49 mm |
| Withings ScanWatch Nova | Withings | Up to 35 days | 10ATM | 42 mm |
How to choose
If you do outdoor sport, a strong glass and a light case matter more than a premium look. If you wear the watch to work, a steel or titanium case may suit you. Weight changes comfort, see smartwatch sizes by brand. Water resistance is a separate rating, see water resistance ratings.
Before you buy
Confirm the glass and case material in the maker's listing for your exact size. Materials can differ between sizes. Check the maker's current details. See our methodology.