OPPO K15 Pro+ vs Xiaomi Mi Mix Alpha

The OPPO K15 Pro+ (2026) runs on the MediaTek Dimensity 9500s, while the Xiaomi Mi Mix Alpha (2019) runs on the Qualcomm Snapdragon 855+. By overall MobileRank rating, the OPPO K15 Pro+ leads — 71/100 vs 52/100 (a 19-point difference). Key differences: the OPPO K15 Pro+ has the bigger battery (8000 mAh vs 4050); the main camera is 50 MP vs 108 MP; the OPPO K15 Pro+ is faster in AnTuTu (3,121,723 vs 859,084); the OPPO K15 Pro+ has NFC for contactless payments, the Xiaomi Mi Mix Alpha doesn't; the OPPO K15 Pro+ is noticeably lighter (219g vs 241g).

The OPPO K15 Pro+ is noticeably better than the Xiaomi Mi Mix Alpha — the overall rating gap is 19 points.
Profile comparison
Category scores
OPPO K15 Pro+
Performance 89
Display 94
Camera 35
Battery 75
Portability 44
Value for money 66
Xiaomi Mi Mix Alpha
Performance 55
Display 80
Camera 56
Battery 27
Portability 20
Value for money
What makes OPPO K15 Pro+ better?
  • Higher AnTuTu: 3121723 vs 859084
  • Better Geekbench Single: 2680 vs 1031
  • Better Geekbench Multi: 8358 vs 2864
  • Bigger battery: 8000 vs 4050 mAh
  • Faster charging: 100W vs 40W
  • Lighter: 219g vs 241g

  • Higher performance (89/100 vs 55/100)
  • Longer battery life (75/100 vs 27/100)
  • Better display (94/100 vs 80/100)
  • Better portability (44/100 vs 20/100)
What makes Xiaomi Mi Mix Alpha better?
  • Better main camera: 108MP vs 50MP

  • Better camera (56/100 vs 35/100)
Comparison verdict

Comparing the OPPO K15 Pro+ vs the Xiaomi Mi Mix Alpha, the OPPO K15 Pro+ scores 19 points higher (71/100 vs 52/100). In the "performance" category, the OPPO K15 Pro+ leads (89/100 vs 55/100). In the "camera" category, the Xiaomi Mi Mix Alpha leads (56/100 vs 35/100). In the "battery" category, the OPPO K15 Pro+ leads (75/100 vs 27/100). In the "performance" category, the OPPO K15 Pro+ significantly outperforms the Xiaomi Mi Mix Alpha (89/100 vs 55/100). In the "display" category, the OPPO K15 Pro+ is a bit better (94/100 vs 80/100). In the "camera" category, the Xiaomi Mi Mix Alpha notably outperforms the OPPO K15 Pro+ (56/100 vs 35/100). In the "battery" category, the OPPO K15 Pro+ significantly outperforms the Xiaomi Mi Mix Alpha (75/100 vs 27/100). In the "portability" category, the OPPO K15 Pro+ notably outperforms the Xiaomi Mi Mix Alpha (44/100 vs 20/100).

OPPO K15 Pro+: The OPPO K15 Pro+ is a better fit for gamers and power users, those who care about battery life.
Xiaomi Mi Mix Alpha: The Xiaomi Mi Mix Alpha is a better fit for everyday use.
Specs comparison
Specification OPPO K15 Pro+ Xiaomi Mi Mix Alpha
Processor MediaTek Dimensity 9500s Qualcomm Snapdragon 855+
AnTuTu 3121723 859084
Geekbench Single 2680 1031
Geekbench Multi 8358 2864
Display 6.8" AMOLED 7.9" Flexible Super AMOLED
Resolution 2772x1272 2088x2250
Refresh rate 165 Hz
Battery 8000 mAh 4050 mAh
Charging 100W 40W
Main camera 50 MP 108 MP
Ultrawide 8 MP 20 MP
Telephoto 0 MP 12 MP
Front camera 16 MP
RAM 12GB 12GB
Storage 256GB / 512GB 512GB
OS Android 16 Android 10
Brightness (peak) 1800 nits
NFC yes no
Protection IP68
Dimensions 162.4×77.5×8.3 mm 154.4×72.3×10.4 mm
Weight 219 g 241 g
Launch price $509
Camera comparison
OPPO K15 Pro+
  • Main: 50MP f/f/1.8
  • Ultrawide: 8MP
  • Front: 16MP
35
camera
Xiaomi Mi Mix Alpha
  • Main: 108MP f/f/1.7
  • Ultrawide: 20MP
  • Telephoto: 12MP
  • Front: —
56
camera
Display comparison
OPPO K15 Pro+
  • 6.8" AMOLED
  • Resolution: 2772x1272
  • Refresh rate: 165 Hz
94
display
Xiaomi Mi Mix Alpha
  • 7.9" Flexible Super AMOLED
  • Resolution: 2088x2250
  • Refresh rate: —
80
display
Battery and charging
OPPO K15 Pro+
  • 8000 mAh
  • Wired: 100W
  • No wireless charging
75
battery
Xiaomi Mi Mix Alpha
  • 4050 mAh
  • Wired: 40W
  • No wireless charging
27
battery
Overall performance score

We compared OPPO K15 Pro+ and Xiaomi Mi Mix Alpha, covering their specs and all relevant benchmarks.

OPPO K15 Pro+ MediaTek Dimensity 9500s
71/100
3121723 AnTuTu
Xiaomi Mi Mix Alpha Qualcomm Snapdragon 855+
52/100 -263.4%
859084 AnTuTu

OPPO K15 Pro+ leads Xiaomi Mi Mix Alpha by 263.4% in our overall performance rating.

Benchmarks
Launch prices and where to check today's
OPPO K15 Pro+
$509
Xiaomi Mi Mix Alpha
Price unknown
Detailed category analysis
performance

In the "performance" category, the OPPO K15 Pro+ significantly outperforms the Xiaomi Mi Mix Alpha (89/100 vs 55/100).

display

In the "display" category, the OPPO K15 Pro+ is a bit better (94/100 vs 80/100).

camera

In the "camera" category, the Xiaomi Mi Mix Alpha notably outperforms the OPPO K15 Pro+ (56/100 vs 35/100).

battery

In the "battery" category, the OPPO K15 Pro+ significantly outperforms the Xiaomi Mi Mix Alpha (75/100 vs 27/100).

portability

In the "portability" category, the OPPO K15 Pro+ notably outperforms the Xiaomi Mi Mix Alpha (44/100 vs 20/100).

Frequently asked questions
Which is better: the OPPO K15 Pro+ or the Xiaomi Mi Mix Alpha?

The OPPO K15 Pro+ is noticeably better than the Xiaomi Mi Mix Alpha — the overall rating gap is 19 points.

What is the rating of the OPPO K15 Pro+ and the Xiaomi Mi Mix Alpha?

The OPPO K15 Pro+ has a MobileRank rating of 71/100, the Xiaomi Mi Mix Alpha — 52/100.

Which has the better camera: the OPPO K15 Pro+ or the Xiaomi Mi Mix Alpha?

The Xiaomi Mi Mix Alpha leads on camera score (56/100 vs 35/100).

Which is more powerful: the OPPO K15 Pro+ or the Xiaomi Mi Mix Alpha?

The OPPO K15 Pro+ leads on performance (89/100 vs 55/100).

Should you choose the OPPO K15 Pro+ over the Xiaomi Mi Mix Alpha?

The OPPO K15 Pro+ is a better fit for gamers and power users, those who care about battery life. The Xiaomi Mi Mix Alpha is a better fit for everyday use.