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InnoReviews

Nothing Phone (4a) Pro vs Xiaomi 15 Ultra

Nothing Phone (4a) Pro
63.7Inno Score
VS
WINNER
Xiaomi 15 Ultra

Xiaomi

Xiaomi 15 Ultra

$1,499

75.9Inno Score
45.1Performance79.1
85.2Display69.1
57.6Camera73.2
71.5Battery79
73.3Features78.7
7 spec wins — Nothing Phone (4a) Pro12 spec wins — Xiaomi 15 Ultra

InnoReviews verdict

Xiaomi 15 Ultra wins this phone face-off, 75.9 to 63.7, pulling ahead mainly in performance (+34) and camera (+16). Nothing Phone (4a) Pro 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 (4a) Pro

  • Stronger display score: 85 vs 69
  • 56% higher Peak brightness: 5,000 nits vs 3,200 nits
  • 28% higher Active use endurance: 15.3 h vs 12 h
  • 20% higher Refresh rate: 144 Hz vs 120 Hz
  • 16% lower thickness: 7.9 mm vs 9.4 mm
  • Lower launch price: $499 vs $1,499

Reasons to pick the Xiaomi 15 Ultra

  • Stronger performance score: 79 vs 45
  • Stronger camera score: 73 vs 58
  • Stronger battery score: 79 vs 72
  • Stronger features score: 79 vs 73
  • 525% higher ultra-wide: 50 MP vs 8 MP

Display

Display comparison: Nothing Phone (4a) Pro versus Xiaomi 15 Ultra
SpecNothing Phone (4a) ProXiaomi 15 Ultra
Screen size6.83 ″+1%6.73 ″
Panel typeAMOLEDLTPO AMOLED
Resolution1260x28001440x3200
Pixel density450 ppi522 ppi+16%
Refresh rate144 Hz+20%120 Hz
Peak brightness5,000 nits+56%3,200 nits
Screen-to-body93.9 %+4%90 %

Performance

Performance comparison: Nothing Phone (4a) Pro versus Xiaomi 15 Ultra
SpecNothing Phone (4a) ProXiaomi 15 Ultra
ChipsetSnapdragon 7 Gen 4Snapdragon 8 Elite
AnTuTu1,469,7172,650,000+80%
Geekbench 6 (single)1,334Top 50%3,050+129%Top 12%
Geekbench 6 (multi)4,170Top 46%9,600+130%Top 11%
Wild Life Extreme stability99 %Top 37%—
RAM (max)12 GB16 GB+33%
Storage options128GB/256GB256/512GB/1TB
Storage typeUFS 3.1UFS 4.1

Camera

Camera comparison: Nothing Phone (4a) Pro versus Xiaomi 15 Ultra
SpecNothing Phone (4a) ProXiaomi 15 Ultra
Main camera50 MP50 MP
Main aperturef/1.9f/1.63
Ultra-wide8 MP50 MP+525%
Telephoto50 MP200 MP+300%
Optical zoom3.5 x4.3 x+23%
Max video4K@60fps8K@30fps
Front camera32 MP32 MP
OISYesYes

Battery

Battery comparison: Nothing Phone (4a) Pro versus Xiaomi 15 Ultra
SpecNothing Phone (4a) ProXiaomi 15 Ultra
Capacity5,080 mAh5,410 mAh+6%
Wired charging50 W90 W+80%
Wireless charging0 W80 W
Active use endurance15.3 h+28%12 h

Design

Design comparison: Nothing Phone (4a) Pro versus Xiaomi 15 Ultra
SpecNothing Phone (4a) ProXiaomi 15 Ultra
Weight210 g+7%226 g
Thickness7.9 mm+16%9.4 mm
IP ratingIP65IP68
Frame materialAluminumAluminum

Connectivity

Connectivity comparison: Nothing Phone (4a) Pro versus Xiaomi 15 Ultra
SpecNothing Phone (4a) ProXiaomi 15 Ultra
5GYesYes
Wi-FiWi-Fi 6Wi-Fi 7
Bluetooth5.46.0
NFCYesYes
USBUSB-C 2.0USB-C 3.2
eSIMYesYes

Software

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

Audio

Audio comparison: Nothing Phone (4a) Pro versus Xiaomi 15 Ultra
SpecNothing Phone (4a) ProXiaomi 15 Ultra
Stereo speakersYesYes
3.5mm jackNoNo

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