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InnoReviews

Nothing Phone (4b) vs Xiaomi 15

Nothing Phone (4b)
44.2Inno Score
VS
WINNER
Xiaomi 15

Xiaomi

Xiaomi 15
73.4Inno Score
28.9Performance76.7
52.8Display64.5
42.6Camera64.7
49.7Battery83.5
65.3Features78.7
1 spec wins — Nothing Phone (4b)11 spec wins — Xiaomi 15

InnoReviews verdict

Xiaomi 15 wins this phone face-off, 73.4 to 44.2, pulling ahead mainly in performance (+48) and battery (+34). Nothing Phone (4b) still makes sense if its price or standout specs fit your needs better.

Which would you pick?

Key differences

Reasons to pick the Nothing Phone (4b)

No decisive spec advantages — this side competes on price and preference.

Reasons to pick the Xiaomi 15

  • Stronger performance score: 77 vs 29
  • Stronger display score: 65 vs 53
  • Stronger camera score: 65 vs 43
  • Stronger battery score: 84 vs 50
  • Stronger features score: 79 vs 65

Display

Display comparison: Nothing Phone (4b) versus Xiaomi 15
SpecNothing Phone (4b)Xiaomi 15
Screen size6.77 ″+6%6.36 ″
Panel typeAMOLEDLTPO AMOLED
Resolution1080x23441200x2670
Pixel density381 ppi460 ppi+21%
Refresh rate120 Hz120 Hz
Peak brightness2,000 nits3,200 nits+60%
Screen-to-body87.4 %—

Performance

Performance comparison: Nothing Phone (4b) versus Xiaomi 15
SpecNothing Phone (4b)Xiaomi 15
ChipsetSnapdragon 6 Gen 4Snapdragon 8 Elite
AnTuTu—2,914,100Top 17%
AnTuTu 11 (CPU)—874,340Top 14%
AnTuTu 11 (GPU)—1,069,991Top 17%
AnTuTu 11 (Memory)—379,667Top 20%
AnTuTu 11 (UX)—590,102Top 20%
Geekbench 6 (single)—2,972Top 15%
Geekbench 6 (multi)—9,330Top 12%
Wild Life Extreme stability—89 %Top 50%
RAM (max)8 GB12 GB+50%
Storage options128GB/256GB256/512GB
Storage typeUFS 2.2UFS 4.0

Camera

Camera comparison: Nothing Phone (4b) versus Xiaomi 15
SpecNothing Phone (4b)Xiaomi 15
Main camera50 MP50 MP
Main aperturef/1.8f/1.62
Ultra-wide8 MP50 MP+525%
Telephoto—50 MP
Optical zoom—2.6 x
Max video4K@30fps8K@30fps
Front camera16 MP32 MP+100%
OISYesYes

Battery

Battery comparison: Nothing Phone (4b) versus Xiaomi 15
SpecNothing Phone (4b)Xiaomi 15
Capacity5,200 mAh5,240 mAh+1%
Wired charging33 W90 W+173%
Wireless charging0 W50 W
Active use endurance—16.5 h

Design

Design comparison: Nothing Phone (4b) versus Xiaomi 15
SpecNothing Phone (4b)Xiaomi 15
Weight210 g191 g+9%
Thickness8.6 mm8.1 mm+6%
IP ratingIP64IP68
Frame materialPlasticAluminum

Connectivity

Connectivity comparison: Nothing Phone (4b) versus Xiaomi 15
SpecNothing Phone (4b)Xiaomi 15
5GYesYes
Wi-FiWi-Fi 6Wi-Fi 7
Bluetooth6.06.0
NFCYesYes
USBUSB-C 2.0USB-C 3.2
eSIM—Yes

Software

Software comparison: Nothing Phone (4b) versus Xiaomi 15
SpecNothing Phone (4b)Xiaomi 15
OS at launchAndroid 16 (Nothing OS 4.1)Android 15 (HyperOS 2)
OS update pledge3 years4 years+33%

Audio

Audio comparison: Nothing Phone (4b) versus Xiaomi 15
SpecNothing Phone (4b)Xiaomi 15
Stereo speakersYesYes
3.5mm jackNoNo

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