Which Smartwatch Has the Longest Battery Life? (2025 Update)

Battery life is king when it comes to choosing a smartwatch in 2025. While most smartwatches barely survive 1-2 days with heavy usage, there are a few standout models that last up to 14 to 45 days on a single charge! Below are the top performers in the industry:

Top Smartwatches with Longest Battery Life (2025 Edition)
Amazfit T-Rex Ultra
- Battery Life: 20 to 30 Days (Basic Mode)
- Description: Built for rugged outdoor enthusiasts, this watch offers ultra-long battery and military-grade toughness. Great for hiking, camping, or military users.
Huawei Watch GT 4
- Battery Life: 14 Days
- Description: Stylish yet powerful, this watch combines AMOLED display, fitness tracking, and a smart assistant with exceptional endurance.
Garmin Enduro 2
- Battery Life: 34 to 45 Days (Battery Saver Mode)
- Description: Specifically designed for endurance athletes and runners. GPS-enabled, solar charging, and ultra-stamina mode make this a beast.
Coros Vertix 2
- Battery Life: 60 Days (Standard Mode)
- Description: A favorite among high-altitude climbers and ultra-marathoners. Built-in GPS, offline maps, and titanium bezel with record-breaking endurance.
YES Sports GPS Watch (Bangladesh Market)
- Battery Life: 7 to 15 Days
- Description: Affordable yet efficient, the YES Sports GPS watch is a solid choice for casual users who want health tracking and smart notifications without charging every night.
Why Battery Life Matters
- Longer battery means less stress
- Better for travel, hiking, or outdoor work
- Sleep tracking only works when your watch is alive
- Saves power and increases device lifespan
- Essential during emergencies and trips