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InnoReviews

OPPO K15 vs Xiaomi 18 Fold

OPPO K15
61.1Inno Score
VS
WINNER
Xiaomi 18 Fold
79.3Inno Score
46.7Performance91.6
53.6Display67
58.6Camera71.9
79.8Battery76.6
86.7Features86.7
6 spec wins — OPPO K155 spec wins — Xiaomi 18 Fold

InnoReviews verdict

Xiaomi 18 Fold wins this phone face-off, 79.3 to 61.1, pulling ahead mainly in performance (+45) and display (+13). OPPO K15 still makes sense if its price or standout specs fit your needs better.

Which would you pick?

Key differences

Reasons to pick the OPPO K15

  • Stronger battery score: 80 vs 77
  • 213% higher Front camera: 50 MP vs 16 MP
  • 33% higher capacity: 8,000 mAh vs 6,000 mAh
  • 22% lower thickness: 8.3 mm vs 10.7 mm
  • 20% higher Pixel density: 460 ppi vs 382 ppi

Reasons to pick the Xiaomi 18 Fold

  • Stronger performance score: 92 vs 47
  • Stronger display score: 67 vs 54
  • Stronger camera score: 72 vs 59
  • 300% higher Main camera: 200 MP vs 50 MP
  • 233% higher Peak brightness: 4,000 nits vs 1,200 nits

Display

Display comparison: OPPO K15 versus Xiaomi 18 Fold
SpecOPPO K15Xiaomi 18 Fold
Screen size6.59 ″7.58 ″+15%
Panel typeAMOLEDFoldable LTPO AMOLED
Resolution2760x12562364x1672
Pixel density460 ppi+20%382 ppi
Refresh rate120 Hz120 Hz
Peak brightness1,200 nits4,000 nits+233%
Screen-to-body88.9 %90.6 %+2%

Performance

Performance comparison: OPPO K15 versus Xiaomi 18 Fold
SpecOPPO K15Xiaomi 18 Fold
ChipsetDimensity 7360 SuperXiaomi XRing O3
AnTuTu—4,811,636
Geekbench 6 (single)—3,448Top 7%
Geekbench 6 (multi)—12,758Top 1%
RAM (max)12 GB16 GB+33%
Storage options256GB256/512GB/1TB
Storage typeUFS 3.1UFS 4.1

Camera

Camera comparison: OPPO K15 versus Xiaomi 18 Fold
SpecOPPO K15Xiaomi 18 Fold
Main camera50 MP200 MP+300%
Main aperturef/1.8f/1.7
Ultra-wide50 MP50 MP
Telephoto—50 MP
Optical zoom—3.5 x
Max video4K@30fps8K@24fps
Front camera50 MP+213%16 MP
OISYesYes

Battery

Battery comparison: OPPO K15 versus Xiaomi 18 Fold
SpecOPPO K15Xiaomi 18 Fold
Capacity8,000 mAh+33%6,000 mAh
Wired charging80 W+19%67 W
Wireless charging—50 W

Design

Design comparison: OPPO K15 versus Xiaomi 18 Fold
SpecOPPO K15Xiaomi 18 Fold
Weight205 g+6%219 g
Thickness8.3 mm+22%10.7 mm
IP ratingIP68/IP69IP58/IP59
Frame materialAluminumAluminum

Connectivity

Connectivity comparison: OPPO K15 versus Xiaomi 18 Fold
SpecOPPO K15Xiaomi 18 Fold
5GYesYes
Wi-FiWi-Fi 6Wi-Fi 7
Bluetooth5.46.0
NFCYesYes
USBUSB-C 2.0USB-C 3.2
eSIMNoNo

Software

Software comparison: OPPO K15 versus Xiaomi 18 Fold
SpecOPPO K15Xiaomi 18 Fold
OS at launchAndroid 16 (ColorOS 16)Android 17 (HyperOS 4)

Audio

Audio comparison: OPPO K15 versus Xiaomi 18 Fold
SpecOPPO K15Xiaomi 18 Fold
Stereo speakersYesYes
3.5mm jackNoNo

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