The year is 2025, and no one should still be tied to a wall socket every few hours. Today’s smartphones combine powerful performance with AI-driven battery optimization, energy-efficient chipsets, and ultra-fast charging speeds.
If you’re shopping for a phone that lasts all day, or even two, this guide rounds up the best smartphones with outstanding battery life based on real-world performance testing and week-long usage analysis.
1. Samsung Galaxy M15 5G
Battery: 6,000 mAh
Charging: 25W Fast Charging
The Samsung Galaxy M15 5G continues the M-series tradition of massive batteries at competitive prices. With its 6,000 mAh cell, it delivers up to 23 hours of internet use, 25 hours of video playback, and a staggering 128 hours of audio playback.
Powered by the Exynos 6100+ chipset and a 90Hz refresh rate, the phone maintains impressive energy efficiency. Samsung’s One UI 6 introduces refined background app control, ensuring no wasted power.
Best for: Budget buyers and heavy streamers who want unbeatable endurance.
2. ASUS ROG Phone 8 Pro
Battery: 5,500 mAh
Charging: 65W HyperCharge
Built for gamers, the ASUS ROG Phone 8 Pro is a battery powerhouse disguised as a gaming rig. With 65W charging, it fills from 0–100% in just 39 minutes.
You can enjoy 3.4 hours of heavy gaming, 23 hours of streaming, and 17 hours of social scrolling. Its Snapdragon 8 Gen 3 processor and GameCool 8 thermal system minimize heat while optimizing power draw.
Best for: Gamers, streamers, and multitaskers who need raw power and endurance.
3. OnePlus 13R
Battery: 6,000 mAh
Charging: 80W SuperVOOC
The OnePlus 13R features OnePlus’s largest battery to date — 6,000 mAh — and charges from 1–50% in just 20 minutes. Backed by Snapdragon 8 Gen 3 Lite and OxygenOS 15’s power optimization, it comfortably lasts a day and a half under normal use.
In real-world testing, it supported 24 hours of Netflix playback, proving its efficiency and stamina.
Best for: Users who value fast charging, long battery life, and fluid OxygenOS performance.
4. Moto G 2025
Battery: 5,000 mAh
Charging: 30W TurboPower
The Moto G 2025 is one of the best budget smartphones in 2025 with reliable battery performance. Its 5,000 mAh battery, paired with the efficient Dimensity 6300 chipset and IPS LCD display, ensures consistent all-day use.
You can expect 11 hours of active use, 6 hours of gaming, 13 hours of video playback, and up to 39 hours of call time.
Best for: Budget-conscious users who need reliable performance without constant charging.
5. Xiaomi 15 Ultra
Battery: 5,410 mAh (Silicon-Carbon Composite)
Charging: 90W Wired
The Xiaomi 15 Ultra introduces a silicon-carbon composite battery offering 10% higher energy density and better thermal control than traditional lithium-ion cells.
Its Snapdragon 8 Gen 3 processor and HyperOS PowerSmart Engine 4.0 smartly balance performance and energy consumption. Expect 19 hours of video playback, 13 hours of browsing, and over 40 hours of call time.
Best for: Tech enthusiasts seeking flagship performance with next-gen battery technology.
6. Samsung Galaxy S25 Ultra
Battery: 5,000 mAh
Charging: 45W Fast Charging
Samsung’s Galaxy S25 Ultra uses the Snapdragon 8 Gen 4 for Galaxy with AI-driven power scheduling to learn and adapt to your daily battery habits.
The result? Up to 10 hours of screen-on time, 19 hours of video playback, and 11 hours of social media use, all while recharging 50% in just 20 minutes.
Best for: Professionals and creators who demand power, performance, and endurance in one device.
Final Thoughts
When it comes to battery life in 2025, these six smartphones prove that endurance and performance can coexist. Whether you’re a gamer, content creator, or casual user, there’s a device here that will keep up with your lifestyle — not slow you down.
