Huawei Watch Ultimate 2: specs, who it fits and compatible phones
Huawei Watch Ultimate 2 is a sport watch released in 2025 that works with iPhone and Android. It lists Dual-band GNSS + maps, 20ATM · IP68 · IP69 and Sapphire.
Specifications
| Release year | 2025 (approx.) |
|---|---|
| Case size | 48 mm (approx.) |
| Display | AMOLED |
| Brightness | 3500 nits |
| Battery as listed | About 4.5 days · about 11 days in saver mode |
| Water rating | 20ATM · IP68 · IP69 |
| Glass | Sapphire |
| Case material | Titanium |
| GPS type | Dual-band GNSS + maps |
| Offline maps | Yes |
| Operating system | HarmonyOS |
| Works with | iPhone and Android |
| Connection | No cellular connection |
| Plan needed | None |
| Health sensors | SpO2, HRV, Skin temperature, ECG |
| Safety features | SOS |
Who it fits
- Works with iPhone and Android.
- Lists dual-band GPS and offline maps, which suits running and hiking.
- Lists SOS or fall detection, see our guide for older adults.
Overview
The Watch Ultimate 2 (2025) is Huawei's expedition flagship: rated for diving to 150 meters with sonar-based underwater watch-to-watch communication, a 20ATM + IP68 + IP69 stack that is the toughest water rating in this catalog, and a 3,500-nit LTPO AMOLED in a titanium case with sapphire glass.
What it does well
- Real dive credentials. 150-meter depth rating, 20ATM and sonar communication between watches underwater: features normally found on dedicated dive instruments.
- The toughest sealing here. 20ATM + IP68 + IP69 together.
- Expedition, golf and trail modes on top of the usual sport tracking, with dual-band GNSS and offline maps.
- Flagship hardware: 1.5-inch LTPO AMOLED at 3,500 nits, titanium, sapphire, ECG, HRV, SpO2 and temperature sensing.
Tradeoffs to know
- Battery is the compromise: about 4.5 days typical (11 in saver mode), short for an expedition watch.
- Third-party app support was not verified for this model, and no payment wallet is listed.
- The EUR 601 price is retailer-sourced (marked approximate in our data); availability and official local pricing vary by market.
- One 48mm size, large on smaller wrists.
Price and availability
About EUR 601 at European retailers, a retailer price that can change. No verified official local price in all markets.
FAQ
Is the Watch Ultimate 2 a real dive watch?
Yes: it is rated to 150 meters with 20ATM sealing and supports underwater sonar messaging between watches.
How long does the battery last?
About 4.5 days in typical use, up to 11 days in saver mode, per Huawei's listing.
Which phones work with it?
Both iPhone and Android, through the Huawei Health app.
How it compares
Closest models from other brands
| Model | Release year | Case size | Battery as listed | Water rating | GPS type | Works with |
|---|---|---|---|---|---|---|
| Amazfit T-Rex 3 Pro | 2025 | 48 mm | 25 days (approx.) | 10ATM | Dual-band GNSS + maps | iOS and Android |
| COROS Apex 4 | 2025 | 42 / 46 mm | Up to 65 GPS hours (46 mm) (approx.) | 5ATM | Dual-band GNSS + maps | iOS and Android |
| COROS NOMAD | 2025 | 46 mm | Up to 22 days; 50 hours All-Systems GPS | 5ATM | Dual-band GNSS + maps | iOS and Android |
Compared with Amazfit T-Rex 3 Pro, Huawei Watch Ultimate 2 lists a brighter listed display (3500 nits against 3000).
Compared with COROS Apex 4, Huawei Watch Ultimate 2 lists Titanium case material, where COROS Apex 4 lists Grade-5 titanium.
Only values listed exactly are compared.
Phone compatibility and plan
No plan is listed as needed.
Sensors and features are listed as the maker names them and are not medical measurements.
Related guides and lists
- Battery life explained
- Phone compatibility
- Water resistance ratings
- Sensors explained
- Huawei smartwatches
- All models
Last verified September 26, 2026
Features change with updates. Check the maker's current details. See our methodology