Xiaomi Mi Mix 3 vs OnePlus 12R Specs Comparison

Availability

Officially announced
Oct 25, 2018	Jan 15, 2024
Prices (MSRP)
	$499 | €719

Design

Dimensions
6.22 x 2.94 x 0.33 inches 157.89 x 74.69 x 8.46 mm	6.43 x 2.96 x 0.35 inches 163.3 x 75.3 x 8.8 m
Weight
7.69 oz (218.0 g)	7.30 oz (207.0 g)
Materials
Back: Ceramic Frame: Aluminum	Back: Glass Frame: Aluminum
Resistance
	Water, Dust; IP64
Biometrics
2D Face unlock, Fingerprint (touch)
Features
Notification light
Keys
Right: Volume control, Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
Black, Green, Blue	Green, Black, White

Display

Size
6.4-inch, 84.96% screen-to-body	6.8-inch, 91.00% screen-to-body
Type
Super AMOLED, HDR, 600 nits	AMOLED, 120Hz, HDR, 4500 nits
Resolution
2340x1080px, 19.5:9 ratio, 403 PPI	2780x1264px, 20:9 ratio, 450 PPI
Protection
	Corning Gorilla Glass Victus 2

Hardware

System chip
Snapdragon 845 SDM845 (10 nm)	Snapdragon 8 Gen 2 SM8650-AB (4 nm)
Processor
Octa-core 2800 MHz Kryo 385	Octa-core 1x3.2GHz Cortex-X3 2x2.8GH​z Cortex-A715 2x2.8​GHz Cortex-A710 3x2.0​GHz Cortex-A510
GPU
Adreno 630	Adreno 740
Memory
8GB (LPDDR4)/256GB 6GB/256GB 8GB/256GB 10GB/256GB	16GB (LPDDR5X)/256GB (UFS 4.0)
Storage expansion
not expandable
OS
Android (9.0 Pie)	Android (14)

Battery

Type
3200 mAh, Li - Polymer	5500 mAh, Li - Polymer
Charging
Qualcomm Quick Charge 4+ Qi wireless charging	Fast charging Qi wireless charging, Reverse wireless charging
Charge speed
	Wired: 100.0W

PhoneArena Battery Tests

Battery Life Estimate

Untested

Browsing

Untested

Video

Untested

Gaming

Untested

Battery Life Estimate

8h 6min

Browsing

15h 41min

Video

12h 35min

Gaming

13h 37min

Learn more on our PhoneArena Battery Test Results page

Camera

Rear
Dual camera	Triple camera
Main camera
12.2 MP (OIS, PDAF) Aperture size: F1.8 Sensor size: 1/2.55" Pixel size: 1.4 μm	50 MP (OIS, PDAF) Aperture size: F1.9 Focal length: 24 mm Sensor size: 1/1.56" Pixel size: 1.0 μm
Second camera
12 MP (Telephoto) Optical zoom: 2.0x Sensor size: 1/3.4" Pixel size: 1 μm	8 MP (Ultra-wide) Aperture size: F2.2 Focal Length: 16 mm Sensor size: 1/4" Pixel size: 1.12 μm
Third camera
	2 MP (Macro) Aperture size: F2.4
Flash
Dual LED	LED
Video recording
4K UHD (60 fps), 1080p (960 fps), 720p (960 fps) Time-lapse video, EIS, Video calling, Video sharing	4K UHD (60 fps), 1080p (240 fps)
Front
24 MP (Dual-Camera, Flash, HDR)	32 MP Video capture: 4K UHD (30 fps)

PhoneArena Camera Tests

N/A

Overall

N/A

Photo

N/A

Video

137

Overall

147

Photo

127

Video

Learn more on our PhoneArena Camera Test Results page

Connectivity & Features

Bluetooth
5.0	5.4
WLAN
a,b,g,n,ac,dual-band MIMO, Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac	a,b,g,n,ac,Wi-Fi 6,Wi-Fi 7 Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac, ax
USB
Type-C	Type-C, USB 3.2
Sensors
Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor	Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor
Location
GPS, A-GPS, Glonass, Galileo, BeiDou	GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Other
NFC, VoIP, Tethering, Computer sync, OTA sync	NFC

Multimedia

Headphones
No 3.5mm jack	No 3.5mm jack
Speakers
Earpiece, Loudspeaker	Earpiece, Multiple speakers
Features
Album art cover, Background playback
Screen mirroring
Wireless screen share	Wireless screen share
Additional microphone(s)
	Noise cancellation

Cellular

5G Bands
	n1, n2, n3, n5, n7, n8, n12, n20, n28, n38, n40, n41, n66, n77, n78, 5G Ready
4G (FDD) Bands
1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 29, 30, 66	1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 32, 66
4G (TDD) Bands
34, 38, 39, 40, 41	38, 39, 40, 41
3G Bands
6, 5, 8, 4, 3, 2, 1	1, 2, 5, 8
Data Speed
LTE-A, HSPA, HSUPA	LTE-A, HSDPA+ (4G) 42.2 Mbit/s
Dual SIM
Yes
SIM type
Nano SIM	Dual Nano SIM
HD Voice
Yes
VoLTE
Yes

Alternative variants

with 6 GB RAM

Memory	6GB
Colors	Black

with 256 GB storage

Memory	256GB
Colors	Black

Forbidden City Special Edition

Memory	10GB

Links

Full specifications
Xiaomi Mi Mix 3 Specs	OnePlus 12R Specs
PhoneArena Review
Xiaomi Mi Mix 3 Review	OnePlus 12R Review