Huawei Watch Ultimate 2 - Full Watch Specifications

The Huawei Watch Ultimate 2 is a premium outdoor‑focused smartwatch launched in September 2025, designed for activity tracking, diving, health monitoring, and advanced navigation. It features a 1.5″ LTPO2 AMOLED display with up to 3500 nits peak brightness, a rugged zirconium‑based liquid metal + sapphire glass build, and is powered by HarmonyOS 5.1 with eSIM support for on‑device calling and connectivity without needing a phone nearby.

LAUNCH	Announced	2025, September 19
	Status	Available. Released 2025, September 29
FEATURES	Sensors	Accelerometer, gyro, heart rate, barometer, compass, SpO2, thermometer (body temperature), X-TAP
		Sonar-based underwater communication (Nearlink, up to 30m distance)
		BDS Satellite Messaging - China only
		Heart Rate Variability (HRV)
		Arterial Stiffness Detection

 

DISPLAY	Type	LTPO2 AMOLED, 3500 nits (peak)
	Size	1.5 inches
	Resolution	466 x 466 pixels (~310 ppi density)
NETWORK	Technology	GSM / HSPA / LTE
	2G bands	GSM 850 / 900 / 1800 / 1900
	3G bands	HSDPA 850 / 900 / 1900 / 2100
	4G bands	LTE
	Speed	HSPA, LTE
PLATFORM	OS	HarmonyOS 5.1
BODY	Dimensions	48.5 x 48.5 x 12.9 mm - Black
		47.8 x 47.8 x 12.9 mm - Blue
	Weight	80.5 g (2.86 oz)
	Build	Sapphire crystal front, cerramic bezzel, zirconium front case, ceramic back
	SIM	eSIM
		150m swimproof/diving (EN13319, ISO 22810:2010)
		IP68 dust tight and water resistant (immersible up to 150m/20ATM)
		ECG certified
COMMS	WLAN	Wi-Fi 802.11 a/b/g/n/ac/6
	Bluetooth	5.2, A2DP, LE
	Positioning	GPS (L1+L5), BDS (B1I+B1c), GALILEO (E1+E5a), QZSS (L1+L5), GLONASS
	NFC	Yes
	Radio	No
	USB	No

CAMERA		No
SOUND	Loudspeaker	Yes
	3.5mm jack	No
MEMORY	Card slot	No
	Internal	Unspecified
BATTERY	Type	Li-Ion 867 mAh
	Charging	10W wireless
MISC	Colors	Black, Blue
	Models	MCH-AL00

Carrier Compatibility (USA / Global)

Smartwatches like the Huawei Watch Ultimate 2 do not connect directly to traditional mobile voice/data networks like a phone — instead, they use eSIM and Bluetooth for communication:

·         eSIM calling & data: The Watch Ultimate 2 includes an eSIM, allowing it to make calls and use some data features independently when activated with a compatible plan — but this still doesn’t require it to operate as a full phone on a carrier network.

·         Bluetooth pairing: For notifications, apps, and syncing health data, it pairs with your smartphone over Bluetooth (Android or iOS) via Huawei Health.

·         Worldwide compatibility: Because it uses Bluetooth and eSIM standards rather than 2G/3G/4G/5G modems like a phone, there isn’t a traditional “carrier network compatibility” concern in the U.S. or globally as long as your carrier supports eSIM provisioning for wearables (if you choose to use that feature), it will work with your phone and network setup.

 

Final Summary

Huawei Watch Ultimate 2 is a rugged, feature‑rich premium smartwatch with a super bright AMOLED display, eSIM calling support, ECG and TruSense health monitoring, advanced GPS, and unique underwater sonar communication. It’s built for divers, outdoor adventurers, and health enthusiasts. It doesn’t connect as a phone to carrier voice/data networks in the traditional sense instead, it pairs with a phone or uses wearable eSIM features supported by carriers that allow calling/data on smartwatches.