Which has the bigger battery, the Apple iPhone 16 or the Nothing Phone (3)?

The Nothing Phone (3) has the bigger battery: 5,150 mAh against 3,561 mAh. Real battery life also depends on the chip and screen.

Apple iPhone 16 vs Nothing Phone (3)

The Apple iPhone 16 is 13 mm shorter, 4 mm narrower, 1.2 mm thinner and 48 g lighter than the Nothing Phone (3). Its screen is 0.57" smaller.

Body	Apple iPhone 16	Nothing Phone (3)
Size	147.6 × 71.6 × 7.8 mm	160.6 × 75.6 × 9 mm
Thickness	7.8 mm (better)	9 mm
Weight	170 g (better)	218 g
Frame	Aluminum	Aluminum1
Back	Color-infused glass	Gorilla Glass Victus1
Water resistance	IP68	IP68
Colours	Black, White, Pink, Teal, Ultramarine	White, Black

Performance and software	Apple iPhone 16	Nothing Phone (3)
Chipset	A18	Qualcomm SM8735 Snapdragon 8s Gen 4
CPU	6-core CPU with 2 performance and 4 efficiency cores	Octa-core (1x3.21 GHz Cortex-X4 & 3x3.0 GHz Cortex-A720 & 2x2.8 GHz Cortex-A720 & 2x2.0 GHz Cortex-A720)1
Ships with	iOS	Android 15 with Nothing OS 3.5

Cameras	Apple iPhone 16	Nothing Phone (3)
Rear	48 MP Main, OIS 12 MP Ultrawide	50 MP Main, OIS 50 MP Periscope telephoto (3× optical), OIS 50 MP Ultrawide
Main camera	48 MP	50 MP
Optical zoom	None	3× (better)
Front	12 MP	50 MP
Video	4K Dolby Vision at 60 fps	4K at 60 fps1

Features	Apple iPhone 16	Nothing Phone (3)
Fingerprint	None (Face ID)1	Under-display optical
Stereo speakers	Yes	Yes

Highlighted: the better value where one is clearly better. Sources for each phone are listed on the Apple iPhone 16 and Nothing Phone (3) pages.

Is the Apple iPhone 16 bigger than the Nothing Phone (3)?: The Apple iPhone 16 is 13 mm shorter, 4 mm narrower, 1.2 mm thinner and 48 g lighter than the Nothing Phone (3). Its screen is 0.57" smaller.
Which has the bigger battery, the Apple iPhone 16 or the Nothing Phone (3)?: The Nothing Phone (3) has the bigger battery: 5,150 mAh against 3,561 mAh. Real battery life also depends on the chip and screen.