Home Phone comparison Xiaomi 12 and Vivo iQOO 15R - Which is better?

Xiaomi 12 vs Vivo iQOO 15R

65 out 100
Xiaomi 12
VS
88 out 100
Vivo iQOO 15R
Xiaomi 12
Vivo iQOO 15R

Compared 2 smartphones : Xiaomi 12 Manufactured in December, 2021, with display 6.28 with chipsetQualcomm Snapdragon 8 Gen 1, vs Vivo iQOO 15R, Manufactured in March, 2026 with chipsetQualcomm Snapdragon 8 Gen 5. Below are specs, tests, pros and cons for each device

  1. Differences
  2. Review
  3. Specs
  4. Benchmarks
  5. Battery Life
  6. Cameras
  7. Comments (0)

Key Differences

Device key advantages
Reasons to choose Xiaomi 12
  • Lighter design: 180g vs 202g
  • Supports Dolby Atmos
Reasons to choose Vivo iQOO 15R
  • Larger display: 6.59in
  • Higher pixel density: 459ppi
  • Higher refresh rate: 144Hz
  • Higher battery capacity: 7600mAh vs 4500mAh
  • Newer Bluetooth version: 6.0 vs 5.2
  • Supports DisplayPort

Versions

Available versions and configurations
Memory Options - 8/128 GB
- 8/256 GB
- 12/256 GB		 - 8/256 GB
- 12/256 GB
- 12/512 GB

Review

Key Specs Xiaomi 12 and Vivo iQOO 15R
Display
Color accuracy, sharpness & brightness
Camera
Main & front camera tests
Performance
App & system performance
Games
3D gaming performance
Battery
Battery life, charging speed & type
Connectivity
Connectivity features
NanoReview Score
Overall score by NanoReview
Adjust each parameter’s importance to find the best match for you.
Customize your score
Function
Importance (Weight)
Display:
Camera:
Performance:
Gaming:
Battery:
Connectivity:
Higher weight means greater impact on NanoReview score.

Tests & specs

Specs & test comparison
Smartphones:
Xiaomi 12
vs
Vivo iQOO 15R

Display

Display quality comparison
Type AMOLED AMOLED
Size 6.28 in 6.59 in
Resolution 1080x2400 pixels 1260x2750 pixels
Aspect ratio 20:9 19.5:9
Pixel density 419 ppi 459 ppi
Refresh rate 120 Hz 144 Hz
Adaptive refresh rate Yes (60-120 Hz) Yes (60-120 Hz)
Max brightness 500 nits n/a
HDR support Yes HDR10+ Yes, HDR10+
Touch Sampling Rate 480 Hz n/a
Screen-to-body ratio 89.3 % 90.8 %
Features - DCI-P3
- Always-On Display
- DC dimming		 - DCI-P3
- Always-On Display
- DC dimming
Display test
Peak brightness (auto)
Xiaomi 12
887 nits
Vivo iQOO 15R
n/a

Design & Build

Design and ergonomics comparison
Height 152.7 mm (6.01 in) 157.61 mm (6.21 in)
Width 69.9 mm (2.75 in) 74.42 mm (2.93 in)
Thickness 8.16 mm (0.32 in) 7.9 mm (0.31 in)
Weight 180 g (6.35 oz) 202 g (7.13 oz)
Water resistance No IP69
Cooling system n/a Vapor chamber
Back panel Glass Plastic
Frame Metal Metal
Colors - Black
- Blue
- Pink		 - Black
- Silver
Fingerprint sensor Yes In-Display Yes, In-Display
Screen-to-body ratio
Xiaomi 12
89.3 %
Vivo iQOO 15R
90.8 %

Performance

Testing Xiaomi 12 and Vivo iQOO 15R In benchmarks
Processor
Chipset Qualcomm Snapdragon 8 Gen 1 Qualcomm Snapdragon 8 Gen 5
Max Frequency 3000 MHz 3000 MHz
CPU Cores 8 (1 + 3 + 4) 8 (2 + 6)
Architecture - 4/1.8 (Cortex-A510)
- 3/2.5 (Cortex-A710)
- 1/3 (Cortex-X2)		 6/3.32 ()
Process Samsung TSMC
Transistor Size 4 nm 3 nm
Neural Processor Hexagon Hexagon
Graphics Adreno 730 Adreno 829
GPU Cores 1024 1024
GPU Frequency 818 MHz 1200 MHz
FLOPS 1675.3 GFLOPS 2457.6 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Xiaomi 12
1702
Vivo iQOO 15R
2698
Geekbench 6 (Multi-Core)
Xiaomi 12
3977
Vivo iQOO 15R
8830
Geekbench 6 (Single-Core)17022698
Geekbench 6 (Multi-Core)39778830
Geekbench Compute (GPU)n/a21113
Sources: Geekbench v6 [Xiaomi 12], [Vivo iQOO 15R]
AnTuTu 10
AnTuTu 10
Xiaomi 12
1187033
Vivo iQOO 15R
3272562
CPU3080251018344
GPU439066997845
Memory237645433367
UX212297823006
NanoReview Score11870333272562
3DMark Wild Life
3DMark Wild Life
Xiaomi 12
8751
Vivo iQOO 15R
n/a
Stability60 %n/a
Graphics Test52 fpsn/a
Graphics Score8751n/a
Sources: 3DMark [Xiaomi 12]
PCMark 3.0
PCMark 3.0
Xiaomi 12
12987
Vivo iQOO 15R
n/a
Writing score14840n/a
Web score11534n/a
Video editing7452n/a
Data manipulation9643n/a
NanoReview Score12987n/a

Memory

RAM
RAM Size - 8 GB
- 12 GB		 8 GB
Memory Type LPDDR5 LPDDR5X
Memory Frequency 3200 MHz n/a
Channels 4 4
Storage
Storage Capacity- 128 GB
- 256 GB		256 GB
Storage TypeUFS 3.1UFS 4.1
Memory CardNoNo

Software

OS Android 12 (Upgradeable to Android 14) Android 16
UI Skin HyperOS 1.0 OriginOS 6

Battery

Volume 4500 mAh 7600 mAh
Max Charging Power 67 W 100 W
Battery Type Li-Po Silicon Carbon (Si/C)
Removable No No
Wireless Charging Yes (50 W) No
Reverse Charging Yes (Wireless) Yes
Fast Charging Yes (87% in 30 min) Yes (46% in 30 min)
Full Charge Time 0:46 h 1:04 h
Battery Life Test
Battery Life
Xiaomi 12
15:58
Vivo iQOO 15R
n/a
Web Browsing06:17 hn/a
Video Playback10:46 hn/a
Games04:42 hn/a
Standby Mode71 hn/a

Main camera

Matrix 50 MP 50 MP
Photo resolution 8192x6144 pixels 8192x6144 pixels
Zoom Digital Digital
Flash Dual LED LED
Stabilization Optical Optical
8K Recording Up to 24FPS No
4K Recording Yes (Up to 60 fps) Yes (Up to 60 fps)
1080p Recording Yes (Up to 60 fps) Yes (Up to 60 fps)
Slow Motion 1920 fps (720p) n/a
Wide-angle lens 123 ° n/a
Lenses count Standard: 50 MP
Ultra-wide: 13 MP
Macro: 5 MP		 Standard: 50 MP
Ultra-wide: 8 MP
Features - Bokeh effect
- Pro mode
- RAW support		 - Bokeh effect
- Pro mode
Main lens
Matrix50 MP50 MP
Aperturef/1.9f/1.8
Focal length26 mmn/a
SensorSony IMX766n/a
Sensor size1/1.56n/a
Pixel size1 μmn/a
AutofocusPhase autofocus (Dual Pixel)Phase autofocus
StabilizationOpticalOptical
Ultra-wide lens
Matrix13 MP8 MP
Aperturef/2.4f/2.2
Focal length12 mm15 mm
SensorOmniVision OV13B10n/a
Sensor size1/3.061/4.0 (0.25)
Pixel size1.12 μmn/a
StabilizationDigitalDigital
Main camera DxOMark results
Photo quality
Xiaomi 12
118
Vivo iQOO 15R
n/a
Video quality
Xiaomi 12
121
Vivo iQOO 15R
n/a
Overall camera score
Xiaomi 12
113
Vivo iQOO 15R
n/a
Bokeh55n/a
Preview69n/a
Zoom72n/a
Sources: DxOMark [Xiaomi 12]

Front camera

Matrix 32 MP 32 MP
Photo resolution 6528x4896 pixels n/a
Aperture f/2.4 f/2.2
Focal length 26 mm n/a
Sensor OmniVision OV32B40 n/a
Pixel size 0.7 μm n/a
Autofocus No No
Stabilization Digital Digital
Video resolution 1080p (Full HD) at 60 fps 2160p (4K) at 30 fps
TOF 3D sensor No No

Connectivity

Wi-Fi version Wi-Fi 6E (802.11 a/b/g/n/ac/ax) Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be)
Wi-Fi features - Dual Band
- Wi-Fi MiMO
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display		 - Dual Band
- Wi-Fi MiMO
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version 5.2 6.0
Bluetooth features LE LE
USB type USB Type-C USB Type-C
USB version 2 2
USB features - Charging
- USB Storage Mode
- OTG		 - Charging
- USB Storage Mode
- OTG
DisplayPort n/a Yes
GPS - GPS
- GLONASS
- Beidou
- Galileo
- NAVIC		 - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
NFC* Yes Yes
Infrared Port Yes Yes
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoNo
Hybrid SlotNoNo
2G BandsGSM 850 900 1800 1900 MHzGSM 850/900/1800MHz
3G BandsWCDMA B1/2/4/5/6/8/19WCDMA B1/B5/B6/B8/B19
LTE Bands*LTE (B1/B2/B3/B4/B5/B7/B8/B12/B13/B17/B18/B19/B20/B25/B26/B28/B32/B66)LTE (B1/B3/B4/B5/B7/B8/B18/B19/B20/B26/B28/B32/B71)
LTE category20n/a
5G SupportYesYes

Sound

Speakers Stereo n/a
3.5 mm Jack No No
FM Radio No No
Dolby Atmos Yes n/a

Other

Class Flagship Mid-range
Announced December, 2021 yr February, 2026 yr
Release Date December, 2021 yr March, 2026 yr
Launch Price ($) 580 n/a
MSRP ($) n/a 495
Sensors - Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included Yes 67 W Yes, 100 W
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

After analyzing the data, we consider Vivo iQOO 15R the clear winner in this comparison.

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