OnePlus Open vs Xiaomi Mi Mix Fold 4 Specs Comparison

Compare mobile phone specifications of up to three devices at once. Our specs comparison tool helps you find and compare the perfect phone for your needs.

6.6
OnePlus Open
OnePlus Open Xiaomi Mi Mix Fold 4
Released · Oct 26, 2023
Released · Jul 19, 2024
7.8-inch
8.0-inch
Triple camera
Quad camera
16GB · 512GB
12GB · 256GB
4805 mAh
5100 mAh
Check prices

Design

Dimensions
6.04 x 5.63 x 0.23 inches
153.4 x 143.1 x 5.8 mm
6.28 x 5.64 x 0.18 inches
159.4 x 143.3 x 4.6 mm
Folded
(153.4 x 73.3 x 11.7 mm) (159.4 x 73.1 x 9.5 mm)
Weight
8.43 oz (239.0 g) 7.97 oz (226.0 g)
Materials
Back: Glass
Frame: Aluminum
Resistance
Yes; IPX4 Yes; IPX8
Biometrics
Fingerprint (touch) Fingerprint (touch)
Keys
Right: Volume control, Lock/Unlock key
Colors
Black, White, Blue

Display

Size
7.8-inch 8.0-inch
Resolution
2268x2440px, 1.07:1 ratio, 426 PPI 2488x2224px, 418 PPI
Technology
AMOLED AMOLED
Refresh rate
120Hz 120Hz
Screen-to-body
89.68 % 86.01 %
Peak brightness
2800 cd/m2 (nit) 3000 cd/m2 (nit)
Features
Folding inside the device, HDR support, Ambient light sensor, Proximity sensor Folding inside the device, HDR support, Ambient light sensor, Proximity sensor
Front cover display
6.3 inches
2484 x1116 px
AMOLED
120Hz refresh rate, HDR support
6.6 inches
2520 x1080 px
AMOLED
120Hz refresh rate, HDR support

Hardware

System chip
Qualcomm Snapdragon 8 Gen 2 SM8550 (4 nm) Qualcomm Snapdragon 8 Gen 3 SM8650-AB (4 nm)
Processor
Octa-core
1x 3.2GHz Kryo Prime + 4x 2.8GHz Kryo Gold + 3x 2.0GHz Kryo Silve
Octa-core
1x 3.3GHz Cortex-X4 + 3x 3.2GHz Cortex-A720 + 2x 3.0GHz Cortex-A720 + 2x 2.3GHz Cortex-A520
GPU
Adreno 740 Adreno 750
RAM
16GB 12GB
Internal storage
512GB (UFS 4.0) 256GB (UFS 4.0)
Storage expansion
not expandable not expandable
OS
Android (13) Android (14)

Battery

Capacity
4805 mAh 5100 mAh
Charging
Fast charging, Reverse wired charging Fast charging, Qi wireless charging
Charge speed
Wired: 67.0W Wired: 67.0W
Wireless: 50.0W
PhoneArena Battery Tests
Battery Life Estimate
5h 35min
Browsing
13h 20min
Video
7h 22min
Gaming
8h 51min
Battery Life Estimate
Untested
Browsing
Untested
Video
Untested
Gaming
Untested

Camera

Rear
Triple camera Quad camera
Main camera
48 MP (OIS, PDAF)
Aperture size: F1.7
Focal length: 24 mm
Pixel size: 1.12 μm
50 MP (OIS, Laser and PDAF)
Aperture size: F1.7
Focal length: 23 mm
Sensor size: 1/1.49"
Pixel size: 1.0 μm
Second camera
48 MP (Ultra-wide, PDAF)
Aperture size: F2.2
Focal Length: 14 mm
Sensor size: 1/2"
Pixel size: 0.8 μm
12 MP (Ultra-wide)
Aperture size: F2.2
Focal Length: 15 mm
Third camera
64 MP (Telephoto, OIS, PDAF)
Optical zoom: 3.0x
Aperture size: F2.6
Focal Length: 70 mm
Sensor size: 1/2"
Pixel size: 0.7 μm
10 MP (Telephoto, Periscope, OIS)
Optical zoom: 5.0x
Aperture size: F2.9
Focal Length: 115 mm
Fourth camera
50 MP (Telephoto, PDAF)
Optical zoom: 2.0x
Aperture size: F2.0
Focal Length: 47 mm
Flash
LED LED
Video recording
3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps) 7680x4320 (8K UHD) (24 fps), 3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (960 fps)
Front
32 MP
Folded: 20 MP
16 MP
Folded: 16 MP
PhoneArena Camera Tests
144
Overall
150
Photo
138
Video
N/A
Overall
N/A
Photo
N/A
Video

Connectivity & Features

Bluetooth
5.3 5.4
WLAN
802.11 b,g,n,ac,ax(Wi-Fi 6),Wi-Fi 6E,Wi-Fi 7,ad
Wi-Fi Direct, Hotspot
802.11 a,b,g,n,ac,ax(Wi-Fi 6),Wi-Fi 6E,Wi-Fi 7
Wi-Fi Direct, Hotspot
USB
Type-C, USB 3.1 Type-C, USB 3.2
Location
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning GPS, A-GPS, Glonass, Galileo, BeiDou, QZSS, NavIC, Cell ID, Wi-Fi positioning
Sensors
Accelerometer, Gyroscope, Compass, Hall (for flip covers) Accelerometer, Gyroscope, Compass, Barometer
Other
NFC NFC, Infrared

Multimedia

Headphones
No 3.5mm jack No 3.5mm jack
Speakers
Earpiece, Multiple speakers Earpiece, Multiple speakers
Screen mirroring
Wireless screen share
Additional microphone(s)
Noise cancellation

Cellular

5G
Bands n1, n2, n3, n5, n7, n8, n12, n20, n25, n28, n30, n38, n40, n41, n66, n71, n75, n77, n78, SA, NSA, Sub-6 Bands n1, n2, n3, n5, n7, n8, n12, n20, n28, n38, n40, n41, n48, n66, n77, n78, n79, SA, NSA
4G (FDD)
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 17(700 b), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 30(2300 WCS), 32(1500 L-band), 66(AWS-3), 71(600) Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 17(700 b), 18(800 Lower), 19(800 Upper), 20(800 DD), 26(850+), 28(700 APT), 66(AWS-3)
4G (TDD)
Bands 38(2600), 39(1900+), 40(2300), 41(2600+), 46, 48(3600) Bands 34(2000), 38(2600), 39(1900+), 40(2300), 41(2600+), 42(3500)
3G
Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 6(800), 8(900), 19(800) Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 6(800)
Data Speed
LTE-A, HSDPA+ (4G) 42.2 Mbit/s LTE-A, HSDPA+ (4G) 42.2 Mbit/s
Dual SIM
Yes
SIM type
Dual Nano SIM Dual Nano SIM

Buyers information

MSRP
$ 1699 € 1140

Availability

Officially announced
Oct 19, 2023

Alternative variants

With 16 GB RAM and 512GB internal storage.
RAM 16GB
Internal storage 512GB
With 16GB RAM and 1TB internal storage
RAM 16GB
Internal storage 1024GB
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