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InnoReviews

POCO X8 Power vs Xiaomi 15 Ultra

X
54.9Inno Score
VS
WINNER
Xiaomi 15 Ultra

Xiaomi

Xiaomi 15 Ultra

$1,499

75.9Inno Score
28.9Performance79.1
66.5Display69.1
45.9Camera73.2
83.2Battery79
70.7Features78.7
5 spec wins — POCO X8 Power6 spec wins — Xiaomi 15 Ultra

InnoReviews verdict

Xiaomi 15 Ultra wins this phone face-off, 75.9 to 54.9, pulling ahead mainly in performance (+50) and camera (+27). POCO X8 Power still makes sense if its price or standout specs fit your needs better.

Which would you pick?

Key differences

Reasons to pick the POCO X8 Power

  • Stronger battery score: 83 vs 79
  • 85% higher capacity: 10,000 mAh vs 5,410 mAh
  • 11% higher Wired charging: 100 W vs 90 W

Reasons to pick the Xiaomi 15 Ultra

  • Stronger performance score: 79 vs 29
  • Stronger camera score: 73 vs 46
  • Stronger features score: 79 vs 71
  • 525% higher ultra-wide: 50 MP vs 8 MP
  • 100% higher RAM (max): 16 GB vs 8 GB

Display

Display comparison: POCO X8 Power versus Xiaomi 15 Ultra
SpecPOCO X8 PowerXiaomi 15 Ultra
Screen size6.83 ″+1%6.73 ″
Panel typeAMOLEDLTPO AMOLED
Resolution1280x27721440x3200
Pixel density447 ppi522 ppi+17%
Refresh rate120 Hz120 Hz
Peak brightness3,500 nits+9%3,200 nits
Screen-to-body89.5 %90 %+1%

Performance

Performance comparison: POCO X8 Power versus Xiaomi 15 Ultra
SpecPOCO X8 PowerXiaomi 15 Ultra
ChipsetSnapdragon 6 Gen 5Snapdragon 8 Elite
AnTuTu—2,650,000
Geekbench 6 (single)—3,050Top 12%
Geekbench 6 (multi)—9,600Top 11%
RAM (max)8 GB16 GB+100%
Storage options128/256GB256/512GB/1TB
Storage typeUFS 2.2UFS 4.1

Camera

Camera comparison: POCO X8 Power versus Xiaomi 15 Ultra
SpecPOCO X8 PowerXiaomi 15 Ultra
Main camera50 MP50 MP
Main aperturef/1.5f/1.63
Ultra-wide8 MP50 MP+525%
Telephoto—200 MP
Optical zoom—4.3 x
Max video4K@30fps8K@30fps
Front camera32 MP32 MP
OISYesYes

Battery

Battery comparison: POCO X8 Power versus Xiaomi 15 Ultra
SpecPOCO X8 PowerXiaomi 15 Ultra
Capacity10,000 mAh+85%5,410 mAh
Wired charging100 W+11%90 W
Wireless charging—80 W
Active use endurance—12 h

Design

Design comparison: POCO X8 Power versus Xiaomi 15 Ultra
SpecPOCO X8 PowerXiaomi 15 Ultra
Weight229 g226 g+1%
Thickness8.6 mm+8%9.4 mm
IP ratingIP68/IP69KIP68
Frame materialPlasticAluminum

Connectivity

Connectivity comparison: POCO X8 Power versus Xiaomi 15 Ultra
SpecPOCO X8 PowerXiaomi 15 Ultra
5GYesYes
Wi-Fi—Wi-Fi 7
Bluetooth6.06.0
NFCNoYes
USBUSB-C 2.0USB-C 3.2
eSIMYesYes

Software

Software comparison: POCO X8 Power versus Xiaomi 15 Ultra
SpecPOCO X8 PowerXiaomi 15 Ultra
OS at launchAndroid 16 (HyperOS 3)Android 15 (HyperOS 2)
OS update pledge4 years4 years

Audio

Audio comparison: POCO X8 Power versus Xiaomi 15 Ultra
SpecPOCO X8 PowerXiaomi 15 Ultra
Stereo speakersYesYes
3.5mm jackNoNo

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