Xiaomi Mi Mix 4 vs Samsung Galaxy Z Fold 2 Specs Comparison

Availability

Officially announced
Aug 10, 2021	Aug 05, 2020
Prices (MSRP)
	$2000

Design

Dimensions
6.40 x 2.97 x 0.31 inches 162.6 x 75.4 x 8 mm	6.27 x 5.05 x 0.27 inches 159.2 x 128.2 x 6.9 mm
Folded
	(159.2 x 68 x 16.8 mm)
Weight
7.94 oz / 225.0 g	9.95 oz / 282.0 g
Materials
Back: Ceramic Frame: Aluminum	Back: Glass Frame: Aluminum
Resistance
Splash, Dust; IP53
Biometrics
Optical in-screen fingerprint	2D Face unlock, Fingerprint (touch)
Keys
Right: Volume control, Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
Ceramic Black, Ceramic White, Shadow Gray	Mystic black, Mystic bronze

Display

Size
6.7-inch, 87.59% screen-to-body	7.6-inch, 89.00% screen-to-body
Type
AMOLED, 120Hz, HDR	Dynamic AMOLED, 120Hz, HDR
Resolution
2400x1080px, 20:9 ratio, 395 PPI	2208x1768px, 372 PPI
Protection
Corning Gorilla Glass Victus
Features
	Folding inside the device, HDR support, Ambient light sensor, Proximity sensor
Front cover display
	6.2 inches 2260 x816 px AMOLED Scratch-resistant glass (Corning Gorilla Glass)

PhoneArena Display Test

Bright Max (20% APL)
Untested	Untested
Bright Min
Untested	1.6 (Good)

Learn more on our PhoneArena Display Test Results page.

Hardware

System chip
Snapdragon 888+ SM8350-AC (5 nm)	Snapdragon 865+ SM8250-AB (7 nm)
Processor
Octa-core Kryo 680 Prime	Octa-core 1x3.1GHz Kryo 585 3x2.42GHz Kryo 585 4x1.80GHz Kryo 585
GPU
Adreno 660	Adreno 650
Memory
8GB (LPDDR5)/128GB (UFS 3.1) 8GB/256GB 12GB/256GB 12GB/512GB	12GB (LPDDR5)/256GB (UFS 3.1)
Storage expansion
not expandable	not expandable
OS
Android (11)	Android (11, 10)

Battery

Type
4500 mAh, Li - Ion	4500 mAh
Charging
Fast charging Qi wireless charging, Reverse wireless charging	Qualcomm Quick Charge 2.0, Samsung Adaptive Fast Charging Qi and Powermat wireless charging, Reverse wireless charging
Charge speed
Wired: 120.0W Wireless: 50.0W	Wired: 25.0W Wireless: 11.0W

PhoneArena Battery Tests

Battery Life Estimate

Untested

Browsing

Untested

Video

Untested

Gaming

Untested

Battery Life Estimate

4h 23min

Browsing

6h 43min

Video

7h 10min

Gaming

9h 9min

Learn more on our PhoneArena Battery Test Results page

Camera

Rear
Triple camera	Triple camera
Main camera
108 MP (OIS, Laser and PDAF) Aperture size: F1.9 Focal length: 24 mm Sensor size: 1/1.33" Pixel size: 0.8 μm	12 MP (OIS, PDAF) Aperture size: F1.8 Focal length: 26 mm Sensor size: 1/1.76" Pixel size: 1.8 μm
Second camera
13 MP (Ultra-wide) Aperture size: F2.2 Focal Length: 12 mm Sensor size: 1/3.06" Pixel size: 1.12 μm	12 MP (Ultra-wide) Aperture size: F2.2 Focal Length: 13 mm Pixel size: 1.12 μm
Third camera
8 MP (Periscope, OIS, PDAF) Optical zoom: 5.0x	12 MP (Telephoto, OIS, PDAF) Optical zoom: 2.0x Aperture size: F2.4 Focal Length: 52 mm Sensor size: 1/3.6" Pixel size: 1.0 μm
Flash
Dual LED	LED
Video recording
8K UHD (24 fps), 4K UHD (60 fps), 1080p (480 fps), 720p (480 fps) HDR, Time-lapse video, Hyperlapse, Continuous autofocus, Object tracking	4K UHD (60 fps), 1080p (240 fps), 720p (960 fps) HDR, Continuous autofocus, EIS
Front
20 MP (Under-screen) Video capture: 1080p	10 MP (EIS, HDR) Folded: 10 MP Video capture: 4K UHD (60 fps)

Connectivity & Features

Bluetooth
5.2	5.0
WLAN
a,b,g,n,ac,Wi-Fi 6 MIMO, Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac, ax	a,b,g,n,ac,Wi-Fi 6,dual-band MIMO, Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac, ax
USB
Type-C, USB 2.0	Type-C, USB 3.1
Sensors
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer, Ambient light sensor, Proximity sensor	Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer, Ambient light sensor, Proximity sensor
Location
GPS, A-GPS, Glonass, Galileo, BeiDou, QZSS, NavIC, Cell ID, Wi-Fi positioning	GPS, A-GPS, Glonass, Cell ID, Wi-Fi positioning
Other
NFC	NFC, ANT+

Multimedia

Headphones
No 3.5mm jack	No 3.5mm jack
Speakers
Earpiece, Multiple speakers	Earpiece, Multiple speakers
Features
	32-Bit DAC, Dolby Atmos, aptX-HD, Dolby Digital, Dolby Digital Plus
Screen mirroring
	Wireless screen share
Additional microphone(s)
	Noise cancellation

Cellular

5G Bands
n1, n3, n5, n8, n28, n41, n77, n78, n79, SA, NSA, Sub-6	SA, NSA, Sub-6, mmWave
4G (FDD) Bands
1, 2, 3, 4, 5, 8, 12, 17, 18, 19, 20, 26, 28	2, 3, 4, 5, 7, 8, 12, 13, 18, 19, 20, 26, 28, 66
4G (TDD) Bands
34, 38, 39, 40, 41, 42	38, 39, 40, 41, 46, 48
3G Bands
1, 2, 4, 5, 6, 8, 19	1, 2, 5, 8
Data Speed
LTE-A, HSDPA+ (4G) 42.2 Mbit/s	LTE-A Pro Cat 20 (2000/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
Dual SIM
Yes	Yes
SIM type
Nano SIM	Nano SIM, eSIM
HD Voice
Yes
VoLTE
Yes

Regulatory Approval

FCC approval
	Date approved: Oct 27, 2020 FCC ID value: A3LSMF916U
Measured SAR
	Head: 0.29 W/kg Body: 1.14 W/kg Simultaneous Transmission: 1.59 W/kg Wireless Router: 1.06 W/kg

Alternative variants

With 256GB internal storage

Memory	256GB

Thom Browne Edition

Colors	Grey
Prices (MSRP)	$3300

With 12GB RAM and 256GB internal storage

Memory	12GB/256GB

With 12GB RAM and 512GB internal storage

Memory	12GB/512GB

Discover more

Full Specs Xiaomi Mi Mix 4 Specs

Full Specs Samsung Galaxy Z Fold 2 Specs PA Review Samsung Galaxy Z Fold 2 Review