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InnoReviews

Samsung Galaxy S23 Ultra vs Xiaomi 15

Samsung Galaxy S23 Ultra
62.6Inno Score
VS
WINNER
Xiaomi 15

Xiaomi

Xiaomi 15
73.4Inno Score
54.3Performance76.7
59.7Display64.5
69.9Camera64.7
62.8Battery83.5
78.7Features78.7
4 spec wins — Samsung Galaxy S23 Ultra17 spec wins — Xiaomi 15

InnoReviews verdict

Xiaomi 15 wins this phone face-off, 73.4 to 62.6, pulling ahead mainly in performance (+22) and battery (+21). Samsung Galaxy S23 Ultra still makes sense if its price or standout specs fit your needs better.

Which would you pick?

Key differences

Reasons to pick the Samsung Galaxy S23 Ultra

  • Stronger camera score: 70 vs 65
  • 300% higher Main camera: 200 MP vs 50 MP
  • 285% higher Optical zoom: 10 x vs 2.6 x

Reasons to pick the Xiaomi 15

  • Stronger performance score: 77 vs 54
  • Stronger display score: 65 vs 60
  • Stronger battery score: 84 vs 63
  • 400% higher telephoto: 50 MP vs 10 MP
  • 317% higher ultra-wide: 50 MP vs 12 MP

Display

Display comparison: Samsung Galaxy S23 Ultra versus Xiaomi 15
SpecSamsung Galaxy S23 UltraXiaomi 15
Screen size6.8 ″+7%6.36 ″
Panel typeDynamic AMOLED 2XLTPO AMOLED
Resolution1440x30881200x2670
Pixel density501 ppi+9%460 ppi
Refresh rate120 Hz120 Hz
Peak brightness1,750 nits3,200 nits+83%
Screen-to-body89.9 %—

Performance

Performance comparison: Samsung Galaxy S23 Ultra versus Xiaomi 15
SpecSamsung Galaxy S23 UltraXiaomi 15
ChipsetSnapdragon 8 Gen 2 for GalaxySnapdragon 8 Elite
AnTuTu 111,677,954Bottom 50%2,914,100+74%Top 17%
AnTuTu 11 (CPU)550,163Bottom 51%874,340+59%Top 14%
AnTuTu 11 (GPU)416,322Bottom 47%1,069,991+157%Top 17%
AnTuTu 11 (Memory)277,973Bottom 51%379,667+37%Top 20%
AnTuTu 11 (UX)433,496Top 44%590,102+36%Top 20%
Geekbench 6 (single)2,000Top 34%2,972+49%Top 15%
Geekbench 6 (multi)5,400Top 34%9,330+73%Top 12%
Wild Life Extreme stability—89 %Top 50%
RAM (max)12 GB12 GB
Storage options256/512GB/1TB256/512GB
Storage typeUFS 4.0UFS 4.0

Camera

Camera comparison: Samsung Galaxy S23 Ultra versus Xiaomi 15
SpecSamsung Galaxy S23 UltraXiaomi 15
Main camera200 MP+300%50 MP
Main aperturef/1.7f/1.62
Ultra-wide12 MP50 MP+317%
Telephoto10 MP50 MP+400%
Optical zoom10 x+285%2.6 x
Max video8K@30fps8K@30fps
Front camera12 MP32 MP+167%
OISYesYes

Battery

Battery comparison: Samsung Galaxy S23 Ultra versus Xiaomi 15
SpecSamsung Galaxy S23 UltraXiaomi 15
Capacity5,000 mAh5,240 mAh+5%
Wired charging45 W90 W+100%
Wireless charging15 W50 W+233%
Active use endurance12 h16.5 h+37%

Design

Design comparison: Samsung Galaxy S23 Ultra versus Xiaomi 15
SpecSamsung Galaxy S23 UltraXiaomi 15
Weight234 g191 g+18%
Thickness8.9 mm8.1 mm+9%
IP ratingIP68IP68
Frame materialArmor AluminumAluminum

Connectivity

Connectivity comparison: Samsung Galaxy S23 Ultra versus Xiaomi 15
SpecSamsung Galaxy S23 UltraXiaomi 15
5GYesYes
Wi-FiWi-Fi 6EWi-Fi 7
Bluetooth5.36.0
NFCYesYes
USBUSB-C 3.2USB-C 3.2
eSIMYesYes

Software

Software comparison: Samsung Galaxy S23 Ultra versus Xiaomi 15
SpecSamsung Galaxy S23 UltraXiaomi 15
OS at launchAndroid 13 (One UI 5.1)Android 15 (HyperOS 2)
OS update pledge4 years4 years

Audio

Audio comparison: Samsung Galaxy S23 Ultra versus Xiaomi 15
SpecSamsung Galaxy S23 UltraXiaomi 15
Stereo speakersYesYes
3.5mm jackNoNo

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