The HUAWEI WATCH Ultimate 2 (March-B29) in blue is a luxury, rugged smartwatch designed for explorers and adventurers, particularly with advanced diving capabilities. It was released in late September 2025 and features an ultra-durable zirconium-based liquid metal case with sapphire glass
Header
Brand - Huawei
Manufacturer - Huawei
Model - Ultimate 2, March-B29
General
Product Type - Smart watch
Size - 46 mm
Display type - LTPO AMOLED
Operating System - HarmonyOS 5.1
Key features
150-meter diving with sonar communication - The standout feature is the world's first sonar-based underwater communication, allowing divers with the same device to send preset texts and emojis over distances up to 30 meters
eSIM cellular calling - Supports standalone eSIM functionality for making phone calls directly from the watch, with AI noise cancellation for improved clarity
Advanced health tracking - The watch uses a multi-sensing X-TAP technology with ECG, PPG, and pressure sensors for more accurate health monitoring
Expedition mode - Offers robust tools for outdoor adventures, including dual-band five-system GNSS for precise positioning, offline maps, and reliable high-altitude monitoring.
Premium design - The blue model (March-B29) features a steel zirconium-based liquid metal case, nanocrystal ceramic bezel and back, and sapphire glass. It ships with both a blue/white fluoroelastomer strap and an interchangeable titanium strap.
System Requirements
Supported Host Device Platform - Android, iOS
Miscellaneous
Band material - Rubber, textile, titanium
Body material - Ceramic, zirconium-based liquid metal
Color - Blue, silver, white
Protection - Waterproof
Battery
Technology - A high-silicon 867 mAh battery provides up to 4.5 days of typical use on Android (without Always-On Display), or up to 11 days in battery saver mode.
Technical details
Producer - Huawei
Warranty - 24 month(s)