Swimming smartwatches
Short answer: 155 models in our catalog list a water rating of 5ATM or higher with an exact value. Of these, 39 list 10ATM. A rating is a lab test result, not permission for every water activity, so read what the maker says about swimming, diving and hot water.
Last verified September 26, 2026.
| Model | Brand | Water rating, as listed | GPS | Battery, as listed | Phone compatibility |
|---|---|---|---|---|---|
| Huawei Watch Ultimate 2 | Huawei | 20ATM | Dual-band GNSS + maps | - | iOS and Android |
| Amazfit Active Edge | Amazfit | 10ATM | Standard GPS | Up to 16 days | iOS and Android |
| Amazfit Balance 3 | Amazfit | 10ATM | Dual-band GNSS + maps | - | iOS and Android |
| Amazfit T-Rex 3 | Amazfit | 10ATM | Dual-band GNSS + maps | - | iOS and Android |
| Amazfit T-Rex 3 Pro | Amazfit | 10ATM | Dual-band GNSS + maps | 25 days (approx.) | iOS and Android |
| Amazfit T-Rex Dual Solar | Amazfit | 10ATM | Dual-band GNSS + maps | - | iOS and Android |
| Amazfit T-Rex Ultra 2 | Amazfit | 10ATM | Dual-band GNSS + maps | Up to 30 days · 50+ GPS hours | iOS and Android |
| Apple Watch Ultra 3 | Apple | 10ATM | Dual-band GNSS + maps | Up to 42 hours · 72 hours saver | iOS only |
| Apple Watch Ultra 4 | Apple | 10ATM | Dual-band GNSS + maps | Up to 50 hours · 84 hours saver | iOS only |
| COROS Vertix 2S | COROS | 10ATM | Dual-band GNSS + maps | 40 days · 118 GPS hours (approx.) | iOS and Android |
| Garmin D2 Mach 2 Pro | Garmin | 10ATM | Dual-band GNSS + maps | Up to 24 days | iOS and Android |
| Garmin Enduro 2 | Garmin | 10ATM | Multi-system GNSS | - | iOS and Android |
| Garmin Enduro 3 | Garmin | 10ATM | Dual-band GNSS + maps | Up to 90 days (solar) · 320 GPS hours | iOS and Android |
| Garmin Fenix 8 Pro AMOLED | Garmin | 10ATM | Dual-band GNSS + maps | Up to 27 days (51 mm) | iOS and Android |
| Garmin Fenix 8 Pro MicroLED | Garmin | 10ATM | Dual-band GNSS + maps | Up to 10 days | iOS and Android |
| Garmin Fenix 9 | Garmin | 10ATM | Dual-band GNSS + maps | Up to 29 days (51 mm) | iOS and Android |
| Garmin Fenix 9 Pro | Garmin | 10ATM | Dual-band GNSS + maps | Up to 31 days · 57 days (solar) | iOS and Android |
| Garmin Instinct 3 | Garmin | 10ATM | Dual-band GNSS | Up to 18 days (AMOLED) · unlimited (solar MIP) | iOS and Android |
| Garmin Instinct Crossover AMOLED | Garmin | 10ATM | Multi-system GNSS | - | iOS and Android |
| Garmin Instinct E 45mm | Garmin | 10ATM | Standard GPS | Up to 16 days · 24 GPS hours | iOS and Android |
| Garmin Tactix 7 AMOLED | Garmin | 10ATM | Multi-system GNSS | - | iOS and Android |
| Garmin quatix 8 Pro | Garmin | 10ATM | Dual-band GNSS + maps | Up to 15 days | iOS and Android |
| Garmin tactix 8 AMOLED | Garmin | 10ATM | Dual-band GNSS + maps | - | iOS and Android |
| Garmin tactix 8 Cerakote Edition | Garmin | 10ATM | Dual-band GNSS + maps | Up to 29 days | iOS and Android |
| Garmin tactix 8 Solar | Garmin | 10ATM | Dual-band GNSS + maps | - | iOS and Android |
| Huawei Watch Ultimate | Huawei | 10ATM | Dual-band GNSS + maps | Up to 14 days | iOS and Android |
| Kospet Tank M4 | Kospet | 10ATM | Dual-band GNSS | - | iOS and Android |
| Mibro GS Explorer | Mibro | 10ATM | Dual-band GNSS (approx.) | Up to 20 days (approx.) | iOS and Android |
| Mibro GS Explorer S | Mibro | 10ATM | Dual-band GNSS + maps | - | iOS and Android |
| Polar Grit X Pro | Polar | 10ATM | Standard GPS | - | iOS and Android |
| Polar Grit X2 Pro | Polar | 10ATM | Dual-band GNSS + maps | 10 days · 43 GPS hours (approx.) | iOS and Android |
| Galaxy Watch Ultra (2024) | Samsung | 10ATM | Dual-band GNSS + maps | 590 mAh, up to 60 hrs (AOD on) / 100 hrs (Power Saving) | Android only |
| Galaxy Watch Ultra (2025) | Samsung | 10ATM | Dual-band GNSS | 590 mAh, up to 60 hrs (AOD on) / 100 hrs (Power Saving) | Android only |
| Galaxy Watch Ultra2 | Samsung | 10ATM | Dual-band GNSS + maps | 800mAh · up to 4 days | Android only |
| Suunto Core 2 | Suunto | 10ATM | None | - | iOS and Android |
| Suunto Race 2 | Suunto | 10ATM | Dual-band GNSS + maps | 16 days · up to 55 GPS hours (approx.) | iOS and Android |
| Suunto Vertical | Suunto | 10ATM | Dual-band GNSS + maps | Up to 60 days (solar) | iOS and Android |
| Suunto Vertical 2 | Suunto | 10ATM | Dual-band GNSS + maps | - | iOS and Android |
| Withings ScanWatch Nova | Withings | 10ATM | None | Up to 35 days | iOS and Android |
| Amazfit Active | Amazfit | 5ATM | Standard GPS | Up to 14 days | iOS and Android |
| Amazfit Active 2 (round) | Amazfit | 5ATM | Standard GPS | Up to 10 days | iOS and Android |
| Amazfit Active 3 Premium | Amazfit | 5ATM | Dual-band GNSS | 12 days (approx.) | iOS and Android |
| Amazfit Active Max | Amazfit | 5ATM | Multi-system GNSS | - | iOS and Android |
| Amazfit Balance | Amazfit | 5ATM | Dual-band GNSS + maps | Up to 14 days | iOS and Android |
| Amazfit Balance 2 | Amazfit | 5ATM | Dual-band GNSS + maps | Up to 21 days | iOS and Android |
| Amazfit Bip 3 Pro | Amazfit | 5ATM | Standard GPS | Up to 14 days | iOS and Android |
| Amazfit Bip 6 | Amazfit | 5ATM | Dual-band GNSS | Up to 14 days | iOS and Android |
| Amazfit Bip Max | Amazfit | 5ATM | Multi-system GNSS | - | iOS and Android |
| Amazfit Cheetah 2 Pro | Amazfit | 5ATM | Dual-band GNSS + maps | - | iOS and Android |
| Amazfit GTR 2 | Amazfit | 5ATM | Standard GPS | Up to 14 days | iOS and Android |
| Amazfit GTS 2e | Amazfit | 5ATM | Standard GPS | Up to 14 days | iOS and Android |
| Amazfit GTS 4 | Amazfit | 5ATM | Dual-band GNSS | Up to 8 days | iOS and Android |
| Apple Watch SE 3 | Apple | 5ATM | Standard GPS | Up to 18 hours | iOS only |
| Apple Watch Series 11 | Apple | 5ATM | Multi-system GNSS | Up to 24 hours | iOS only |
| Apple Watch Series 12 | Apple | 5ATM | Multi-system GNSS | Up to 24 hours (10 workout hours) | iOS only |
| COROS Apex 4 | COROS | 5ATM | Dual-band GNSS + maps | Up to 65 GPS hours (46 mm) | iOS and Android |
| COROS NOMAD | COROS | 5ATM | Dual-band GNSS + maps | Up to 22 days; 50 hours All-Systems GPS | iOS and Android |
| COROS PACE 3 | COROS | 5ATM | Dual-band GNSS | About 15 days of regular use · 38 GPS hours | iOS and Android |
| COROS PACE Pro | COROS | 5ATM | Dual-band GNSS + maps | Up to 20 days · 38 GPS hours | iOS and Android |
| COROS Pace 4 | COROS | 5ATM | Dual-band GNSS | 19 days · 41 GPS hours | iOS and Android |
| Fitbit Ace LTE | Fitbit | 5ATM | Multi-system GNSS | 16 hours (approx.) | iOS and Android |
| Fitbit Charge 5 | Fitbit | 5ATM | Standard GPS | Up to 7 days | iOS and Android |
| Fitbit Charge 6 | Fitbit | 5ATM | Standard GPS | Up to 7 days | iOS and Android |
| Fitbit Inspire 3 | Fitbit | 5ATM | None | Up to 10 days | iOS and Android |
| Fitbit Sense 2 | Fitbit | 5ATM | Standard GPS | 6+ days | iOS and Android |
| Fitbit Versa 3 | Fitbit | 5ATM | Standard GPS | 6+ days | iOS and Android |
| Fitbit Versa 4 | Fitbit | 5ATM | Standard GPS | Up to 6 days | iOS and Android |
| Garett Compass GPS | Garett | 5ATM | Multi-system GNSS | - | iOS and Android |
| Garmin Approach S12 | Garmin | 5ATM | Standard GPS | - | iOS and Android |
| Garmin Forerunner 165 | Garmin | 5ATM | Standard GPS | Up to 11 days · 19 GPS hours | iOS and Android |
| Garmin Forerunner 170 | Garmin | 5ATM | Dual-band GNSS | Up to 10 days | iOS and Android |
| Garmin Forerunner 265 | Garmin | 5ATM | Multi-system GNSS | - | iOS and Android |
| Garmin Forerunner 570 | Garmin | 5ATM | Dual-band GNSS | Up to 10 days (47 mm) | iOS and Android |
| Garmin Forerunner 70 | Garmin | 5ATM | Dual-band GNSS | Up to 13 days | iOS and Android |
| Garmin Forerunner 965 | Garmin | 5ATM | Multi-system GNSS | - | iOS and Android |
| Garmin Forerunner 970 | Garmin | 5ATM | Dual-band GNSS + maps | Up to 15 days | iOS and Android |
| Garmin Lily 2 Active | Garmin | 5ATM | Standard GPS | Up to 9 days | iOS and Android |
| Garmin Venu 3 | Garmin | 5ATM | Standard GPS | - | iOS and Android |
| Garmin Venu 3S | Garmin | 5ATM | Standard GPS | - | iOS and Android |
| Garmin Venu 4 | Garmin | 5ATM | Dual-band GNSS | Up to 12 days | iOS and Android |
| Garmin Vivoactive 5 | Garmin | 5ATM | Standard GPS | - | iOS and Android |
| Garmin Vivoactive 6 | Garmin | 5ATM | Standard GPS | Up to 11 days | iOS and Android |
| Garmin Vivosmart 5 | Garmin | 5ATM | None | Up to 7 days | iOS and Android |
| Pixel Watch (1st gen) | 5ATM | Standard GPS | Up to 24 hours | Android only | |
| Pixel Watch 2 | 5ATM | Standard GPS | - | Android only | |
| Pixel Watch 3 | 5ATM | Standard GPS | - | Android only | |
| Pixel Watch 4 | 5ATM | Dual-band GNSS | Up to 30 hours (41) · 40 hours (45) | Android only | |
| Pixel Watch 5 | 5ATM | Dual-band GNSS | 30 hours (41) · 40 hours (45) | Android only | |
| Honor Band 7 | HONOR | 5ATM | None | Up to 14 days | iOS and Android |
| Honor Band 9 | HONOR | 5ATM | None | Up to 14 days | iOS and Android |
| Honor Watch 4 | HONOR | 5ATM | Standard GPS (approx.) | Up to 14 days (approx.) | iOS and Android |
| Huawei Band 10 | Huawei | 5ATM | None | Up to 14 days | iOS and Android |
| Huawei Band 8 | Huawei | 5ATM | None | Up to 14 days | iOS and Android |
| Huawei Watch 5 | Huawei | 5ATM | Dual-band GNSS + maps | Up to 3 days (42) · 4.5 (46) | iOS and Android |
| Huawei Watch 6 | Huawei | 5ATM | Dual-band GNSS + maps | Up to 4.5 days · up to 11 days in battery saver mode | iOS and Android |
| Huawei Watch 6 Pro | Huawei | 5ATM | Dual-band GNSS + maps | Up to 4.5 days · up to 11 days in battery saver mode | iOS and Android |
| Huawei Watch Fit 3 | Huawei | 5ATM | Standard GPS | Up to 7 days · 10 light-use | iOS and Android |
| Huawei Watch Fit 4 | Huawei | 5ATM | Standard GPS | Up to 7 days · 10 light-use | iOS and Android |
| Huawei Watch Fit 4 Pro | Huawei | 5ATM | Dual-band GNSS + maps | Up to 10 days | iOS and Android |
| Huawei Watch Fit 5 | Huawei | 5ATM | Dual-band GNSS | Up to 7 days · 10 light-use | iOS and Android |
| Huawei Watch GT 4 | Huawei | 5ATM | Standard GPS | Up to 14 days (46) · 7 (41) | iOS and Android |
| Huawei Watch GT 5 | Huawei | 5ATM | Dual-band GNSS + maps | Up to 14 days (46) · 7 (41) | iOS and Android |
| Huawei Watch GT 5 Pro | Huawei | 5ATM | Dual-band GNSS + maps | Up to 14 days (46) · 7 (42) | iOS and Android |
| Huawei Watch GT 6 | Huawei | 5ATM | Dual-band GNSS + maps | Up to 12 days · 21 light-use (46mm) | iOS and Android |
| Huawei Watch GT 7 | Huawei | 5ATM | Dual-band GNSS + maps | Up to 12 days · 21 light-use | iOS and Android |
| Huawei Watch GT 7 Pro | Huawei | 5ATM | Dual-band GNSS + maps | Up to 12 days · 21 light-use | iOS and Android |
| Huawei Watch GT Runner 2 | Huawei | 5ATM | Dual-band GNSS + maps | - | iOS and Android |
| Kospet Magic P10 | Kospet | 5ATM | Dual-band GNSS | 14 days (approx.) | iOS and Android |
| Kospet Magic R10 | Kospet | 5ATM | Dual-band GNSS | 14 days (approx.) | iOS and Android |
| Kospet Tank M3 Ultra | Kospet | 5ATM | Dual-band GNSS | Up to 15 days | iOS and Android |
| Kospet Tank T3 Ultra 2 | Kospet | 5ATM | Dual-band GNSS | 470mAh · 12 days · 30-35 GPS hours (approx.) | iOS and Android |
| Kospet Tank T4C | Kospet | 5ATM | Dual-band GNSS (approx.) | 15 days (approx.) | iOS and Android |
| Maxcom FW67 Titan Pro | Maxcom | 5ATM | None | 380mAh · up to 14 days | iOS and Android |
| Mibro GS Active 2 | Mibro | 5ATM | Dual-band GNSS | - | iOS and Android |
| Mibro GS Pro 2 | Mibro | 5ATM | Dual-band GNSS | - | iOS and Android |
| TicWatch Atlas | Mobvoi | 5ATM | Dual-band GNSS | Up to 90 hours (saver display) | Android only |
| Moto Watch Fit | Motorola | 5ATM | Standard GPS (approx.) | Up to 16 days (approx.) | iOS and Android |
| OnePlus Watch 2 | OnePlus | 5ATM | Dual-band GNSS + maps | - | Android only |
| OnePlus Watch 2R | OnePlus | 5ATM | Dual-band GNSS + maps | - | Android only |
| OnePlus Watch 3 | OnePlus | 5ATM | Dual-band GNSS | Up to 5 days · up to 16 days in power saver mode | Android only |
| OnePlus Watch 4 | OnePlus | 5ATM | Dual-band GNSS | Up to 5 days · up to 16 days in power saver mode | Android only |
| OPPO Watch X3 | OPPO | 5ATM | Dual-band GNSS + maps | Up to 5 days · up to 16 days in power saver mode | Android only |
| Polar Pacer | Polar | 5ATM | Standard GPS | - | iOS and Android |
| Polar Pacer Pro | Polar | 5ATM | Standard GPS | - | iOS and Android |
| Polar Vantage V3 | Polar | 5ATM | Dual-band GNSS + maps | 12 days · 53 GPS hours (approx.) | iOS and Android |
| Galaxy Watch 3 | Samsung | 5ATM | Standard GPS | 2 days (247/340mAh) (approx.) | Android only |
| Galaxy Watch 5 | Samsung | 5ATM | Standard GPS | 40 hours (284/410mAh) (approx.) | Android only |
| Galaxy Watch 5 Pro | Samsung | 5ATM | Standard GPS | 80 hours (590mAh) (approx.) | Android only |
| Galaxy Watch 6 | Samsung | 5ATM | Standard GPS | 40 hours (300/425mAh) (approx.) | Android only |
| Galaxy Watch 6 Classic | Samsung | 5ATM | Standard GPS | 40 hours (300/425mAh) (approx.) | Android only |
| Galaxy Watch 7 | Samsung | 5ATM | Dual-band GNSS + maps | 40 hours (300/425mAh) (approx.) | Android only |
| Galaxy Watch 8 | Samsung | 5ATM | Dual-band GNSS | Up to 29 hours (AOD) (approx.) | Android only |
| Galaxy Watch 8 Classic | Samsung | 5ATM | Dual-band GNSS | Up to 34 hours (AOD) (approx.) | Android only |
| Galaxy Watch 9 | Samsung | 5ATM | Dual-band GNSS | Up to 30 hours (AOD) | Android only |
| Samsung Galaxy Fit3 | Samsung | 5ATM | Uses the phone GPS | Up to 13 days | Android only |
| Suunto Race S | Suunto | 5ATM | Dual-band GNSS + maps | Up to 13 days · up to 30 hours of best GPS (120 hours in saver mode) | iOS and Android |
| Suunto Run 2 | Suunto | 5ATM | Dual-band GNSS + maps | Up to 10 days | iOS and Android |
| Tracer SMK12 Stellar | Tracer | 5ATM | None | - | iOS and Android |
| Withings ScanWatch 2 | Withings | 5ATM | None | Up to 30 days | iOS and Android |
| Withings ScanWatch Light | Withings | 5ATM | None | Up to 30 days | iOS and Android |
| POCO Watch | Xiaomi | 5ATM | Standard GPS | Up to 14 days | iOS and Android |
| Redmi Watch 4 | Xiaomi | 5ATM | Standard GPS | Up to 18 days | iOS and Android |
| Redmi Watch 5 | Xiaomi | 5ATM | Standard GPS | Up to 24 days | iOS and Android |
| Redmi Watch 5 Lite | Xiaomi | 5ATM | Standard GPS | Up to 18 days | iOS and Android |
| Redmi Watch 6 | Xiaomi | 5ATM | Standard GPS | - | iOS and Android |
| Xiaomi Smart Band 10 | Xiaomi | 5ATM | None | Up to 21 days | iOS and Android |
| Xiaomi Smart Band 8 Pro | Xiaomi | 5ATM | Standard GPS | Up to 14 days | iOS and Android |
| Xiaomi Smart Band 9 Pro | Xiaomi | 5ATM | Standard GPS | Up to 21 days | iOS and Android |
| Xiaomi Watch 2 | Xiaomi | 5ATM | Standard GPS | Up to 65 hours | Android only |
| Xiaomi Watch 2 Pro | Xiaomi | 5ATM | Dual-band GNSS + maps | 55 hours (BT) · 45 (LTE) (approx.) | Android only |
| Xiaomi Watch S1 | Xiaomi | 5ATM | Dual-band GNSS | Up to 12 days | iOS and Android |
| Xiaomi Watch S1 Active | Xiaomi | 5ATM | Dual-band GNSS | Up to 12 days | iOS and Android |
| Xiaomi Watch S4 | Xiaomi | 5ATM | Dual-band GNSS | Up to 15 days | iOS and Android |
| Xiaomi Watch S4 41mm | Xiaomi | 5ATM | Dual-band GNSS | - | iOS and Android |
| Xiaomi Watch S5 | Xiaomi | 5ATM | Dual-band GNSS | 12 days (user-measured) (approx.) | iOS and Android |
| Kospet Tank M4C | Kospet | 10ATM (approx.) | Dual-band GNSS | 15 days (approx.) | iOS and Android |
| Kospet Tank T4 | Kospet | 10ATM (approx.) | Dual-band GNSS | Up to 15 days (approx.) | iOS and Android |
| Amazfit Active 2 Square | Amazfit | 5ATM (approx.) | Standard GPS | - | iOS and Android |
| Amazfit Cheetah 2 Ultra | Amazfit | 5ATM (approx.) | Dual-band GNSS + maps | - | iOS and Android |
| Amazfit GTS (1st gen) | Amazfit | 5ATM (approx.) | Standard GPS (approx.) | 14 days (approx.) | iOS and Android |
| Amazfit GTS 2 | Amazfit | 5ATM (approx.) | Standard GPS (approx.) | 7 days (approx.) | iOS and Android |
| ASUS VivoWatch 5 | ASUS | 5ATM (approx.) | Standard GPS | 14 days (approx.) | iOS and Android |
| ASUS VivoWatch 5 Aero | ASUS | 5ATM (approx.) | None | 7 days (approx.) | iOS and Android |
| ASUS VivoWatch 6 | ASUS | 5ATM (approx.) | Dual-band GNSS (approx.) | 9-14 days (approx.) | iOS and Android |
| Garmin Cirqa | Garmin | 5ATM (approx.) | None | - | iOS and Android |
| Garmin Venu X1 | Garmin | 5ATM (approx.) | Multi-system GNSS | - | iOS and Android |
| Honor Choice Watch 2 Pro | HONOR | 5ATM (approx.) | None (approx.) | 12 days (approx.) | iOS and Android |
| Honor Watch 6 | HONOR | 5ATM (approx.) | Standard GPS (approx.) | 14 days (approx.) | iOS and Android |
| Huawei Band 11 | Huawei | 5ATM (approx.) | None | Up to 14 days (approx.) | iOS and Android |
| Huawei Watch Fit SE | Huawei | 5ATM (approx.) | Standard GPS (approx.) | 9 days (approx.) | iOS and Android |
| Kospet Tank M3 | Kospet | 5ATM (approx.) | Dual-band GNSS (approx.) | 15 days (approx.) | iOS and Android |
| Kospet Tank S2 | Kospet | 5ATM (approx.) | Standard GPS (approx.) | 12 days (approx.) | iOS and Android |
| Kospet Tank T2 Special Edition | Kospet | 5ATM (approx.) | Standard GPS (approx.) | 12 days (approx.) | iOS and Android |
| Kospet Tank T3 Ultra | Kospet | 5ATM (approx.) | Dual-band GNSS (approx.) | 12 days (approx.) | iOS and Android |
| Kospet Tank X2 Ultra | Kospet | 5ATM (approx.) | Standard GPS | 12 days (approx.) | iOS and Android |
| Maimo Saphir Watch (WT1004) | Maimo | 5ATM (approx.) | Standard GPS (approx.) | 12 days (approx.) | iOS and Android |
| Maimo Watch R (70mai) | Maimo | 5ATM (approx.) | Standard GPS (approx.) | 12 days (approx.) | iOS and Android |
| Maxcom FW110 Titan Chronos | Maxcom | 5ATM (approx.) | Standard GPS | 12 days (approx.) | iOS and Android |
| Mibro GS Active | Mibro | 5ATM (approx.) | Standard GPS | 14 days (approx.) | iOS and Android |
| Mibro GS Pro | Mibro | 5ATM (approx.) | Standard GPS (approx.) | 14 days (approx.) | iOS and Android |
| Mibro Watch Fit | Mibro | 5ATM (approx.) | Standard GPS (approx.) | 10 days (approx.) | iOS and Android |
| Mibro Watch GS | Mibro | 5ATM (approx.) | Standard GPS (approx.) | 10 days (approx.) | iOS and Android |
| Mibro Watch Lite 3 Pro | Mibro | 5ATM (approx.) | Standard GPS (approx.) | 12 days (approx.) | iOS and Android |
| CMF Watch 3 Pro | Nothing | 5ATM (approx.) | Dual-band GNSS | Up to 13 days | iOS and Android |
| OnePlus Watch Lite | OnePlus | 5ATM (approx.) | Dual-band GNSS | Up to 10 days | iOS and Android |
| Realme Band 2 | Realme | 5ATM (approx.) | None | 12 days (approx.) | iOS and Android |
| Realme Watch S2 | Realme | 5ATM (approx.) | Standard GPS (approx.) | Up to 20 days (approx.) | iOS and Android |
| Ulefone Armor Watch Pro | Ulefone | 5ATM (approx.) | None (approx.) | 14 days (approx.) | iOS and Android |
| Ulefone Armor Watch Ultra | Ulefone | 5ATM (approx.) | None (approx.) | 8 days (approx.) | iOS and Android |
| Xiaomi Smart Band 10 Pro | Xiaomi | 5ATM (approx.) | Standard GPS | Up to 21 days (approx.) | iOS and Android |
| Xiaomi Watch 5 | Xiaomi | 5ATM (approx.) | Dual-band GNSS | - | iOS and Android |
What the rating means
ATM is a pressure rating from a lab test. 5ATM is usually described as suitable for swimming in a pool, and 10ATM for more demanding water sport, but each maker states its own limits, and salt water, hot water and soap can matter. IP ratings such as IP68 measure dust and short immersion and are a different scale, so we do not compare them with ATM.
Check before you swim
Read the maker's water statement for your exact model. Check whether the watch has a swim mode, whether the buttons work wet and whether the strap suits the water. Rinse after salt water if the maker advises it. See water resistance ratings and dual-frequency GPS.
Related lists
Running smartwatches, hiking smartwatches and long-battery smartwatches. Check the maker's current details. See our methodology.