OnePlus Open vs Xiaomi Mi Mix Fold 4 Specs Comparison

Availability

Officially announced
Oct 19, 2023
MSRP
$ 1699	€ 1140

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, 89.68% screen-to-body	8.0-inch, 86.01% screen-to-body
Type
AMOLED, 120Hz, HDR, 2800 nits	AMOLED, 120Hz, HDR, 3000 nits
Resolution
2268x2440px, 1.07:1 ratio, 426 PPI	2488x2224px, 418 PPI
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
Snapdragon 8 Gen 2 SM8550 (4 nm)	Snapdragon 8 Gen 3 SM8650-AB (4 nm)
Processor
Octa-core 1x3.2GHz Kryo Prime 4x2.8GHz Kryo Gold 3x2.0GHz Kryo Silve	Octa-core 1x3.3GHz Cortex-X4 3x3.2GH​z Cortex-A720 2x3.0​GHz Cortex-A720 2x2.3​GHz Cortex-A520
GPU
Adreno 740	Adreno 750
Memory
16GB/512GB (UFS 4.0)	12GB/256GB (UFS 4.0) 16GB/512GB 16GB/1024GB
Storage expansion
not expandable	not expandable
OS
Android (13)	Android (14)

Battery

Type
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

Learn more on our PhoneArena Battery Test Results page

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
4K UHD (60 fps), 1080p (240 fps)	8K UHD (24 fps), 4K UHD (60 fps), 1080p (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

Learn more on our PhoneArena Camera Test Results page

Connectivity & Features

Bluetooth
5.3	5.4
WLAN
b,g,n,ac,Wi-Fi 6,Wi-Fi 6E,Wi-Fi 7,ad Wi-Fi Direct, Hotspot 802.11 b, g, n, ac, ax, ad	a,b,g,n,ac,Wi-Fi 6,Wi-Fi 6E,Wi-Fi 7 Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac, ax
USB
Type-C, USB 3.1	Type-C, USB 3.2
Sensors
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Ambient light sensor, Proximity sensor	Accelerometer, Gyroscope, Compass, Barometer, Ambient light sensor, Proximity sensor
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
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, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 30(2300 WCS), 32(1500 L-band), 66(AWS-3), 71(600)	Bands 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 66(AWS-3)
4G (TDD)
Bands 38, 39, 40, 41, 46, 48	Bands 34, 38, 39, 40, 41, 42
3G
Bands 1, 2, 4, 5, 6, 8, 19	Bands 1, 2, 4, 5, 6
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

Alternative variants

With 16 GB RAM and 512GB internal storage.

Memory	16GB/512GB

With 16GB RAM and 1TB internal storage

Memory	16GB/1024GB

Links

Full specifications
OnePlus Open Specs	Xiaomi Mi Mix Fold 4 Specs
PhoneArena Review
OnePlus Open Review