Phones with the longest battery life
Smartphones ranked by battery capacity, charging speed, and standby efficiency.
Battery life
Phones with the longest battery life
43 products
Samsung
Samsung Galaxy S25 Ultra AI Smartphone
From £1,339
Apple
Apple iPhone 16 Pro Max 256 GB: 5G Mobile phone with Apple Intelligence
From £1,011
XIAOMI
Xiaomi 15 Ultra Smartphone
From £1,295
Apple
Apple iPhone 16 Pro 256 GB: 5G Mobile phone with Apple Intelligence
From £923
XIAOMI
XIAOMI 17 Ultra
From £1,199
Apple
Apple iPhone 17 Pro Max 256 GB: 6.9-inch Display with ProMotion
From £1,199
Google Pixel 10 Pro XL - Unlocked Android Smartphone with Gemini
From £929
Apple
Apple iPhone 17 Pro 256 GB: 6.3-inch Display with ProMotion up to 120Hz
From £1,099
Samsung
Samsung Galaxy S25 Edge AI Smartphone
From £949
Apple
Apple iPhone 16
From £599
Apple
Apple iPhone 16 Pro
From £792
Apple
Apple iPhone 17 256GB
From £799
Google Pixel 10 Pro
From £801
Google Pixel 9 Pro
From £667
Google Pixel 9 Pro Fold
From £717
Google Pixel 9 Pro XL
From £599
Nothing
Nothing Phone (2a) Plus
From £284
Nothing
Nothing Phone (3)
From £560
Nothing
Nothing Phone (3a) Pro
From £292
Nothing
Nothing Phone (4a)
From £379
Nothing
Nothing Phone 3a
From £299
OnePlus
OnePlus 10 Pro
From £899
OnePlus
OnePlus 12 5G
From £700
OnePlus
OnePlus 13 5G
From £599
OnePlus
OnePlus 15
From £819
OnePlus
OnePlus 15 5G
From £859
Samsung
Samsung Galaxy S24
From £424
Samsung
Samsung Galaxy S24 Ultra
From £789
Samsung
Samsung Galaxy S25
From £479
Samsung
Samsung Galaxy S25 5G
From £439
Samsung
Samsung Galaxy S25 Edge
From £889
Samsung
Samsung Galaxy S25 FE
From £649
Samsung
Samsung Galaxy S25 FE 5G
From £410
Samsung
Samsung Galaxy S25 Plus
From £649
Samsung
Samsung Galaxy S25 Ultra
From £877
Apple
iPhone 16 Pro
From £765
Apple
Apple iPhone 16 Plus 256 GB: 5G Mobile phone with Apple Intelligence
From £899
OnePlus
DiscontinuedOnePlus 13
Reference - specs only
Samsung
DiscontinuedSamsung Galaxy S25+
Reference - specs only
Samsung
DiscontinuedSamsung Galaxy S24 Ultra
Reference - specs only
Apple
DiscontinuedApple iPhone 15 Pro
Reference - specs only
Google Pixel 9 Pro XL
Reference - specs only
Nothing
DiscontinuedNothing Phone (3a) Pro
Reference - specs only
Battery life guide
How to choose battery life
Battery life depends on capacity in milliamp-hours, screen efficiency, and chipset thermal behaviour. Larger batteries hold more energy. More efficient OLED panels and 3 nm chipsets reduce idle drain. The OnePlus 13 ships with a 6000 mAh battery. The Xiaomi 15 Ultra ships with a 5410 mAh silicon-carbon battery.
Capacity
Battery capacity ranges from 3274 mAh on the iPhone 15 Pro to 6000 mAh on the OnePlus 13. Capacity correlates with overall longevity but software and chipset efficiency matter more for screen-on time.
Charging
Wired charging speeds range from 27 watts on the iPhone 16 Pro Max to 100 watts on the OnePlus 13. Faster charging refills a depleted battery in under an hour on most flagship phones.