Compare Xiaomi Mi Mix FOLD vs Samsung Galaxy S21 Ultra vs Samsung Galaxy Z Fold 3
Variants
Ceramic
Glass
External Display
International
USA / China
Cover Screen
Main Screen
Connectivity
Ports
USB-C
USB-C 3.2
USB-C 3.2
Wireless Connectivity
WiFi 6E, Bluetooth 5.2, NFC
WiFi 6, Bluetooth 5, NFC
WiFi 6E + Bluetooth 5.2 + NFC
Construction
Battery | Capacity
5020 mAh
5000 mAh
4400 mAh
Camera | Front
20MP, 1/3.4", 0.8µm
40MP Phase Detection AF, FOV 80°, F2.2, 0.7 µm
4MP Under display camera: F1.8, Pixel size: 2.0μm, FOV: 80˚ + 10MP Selfie Camera : F2.2, Pixel size: 1.22μm, FOV: 80˚
Camera | Rear | Telephoto
8MP, liquid lens, PDAF, 3x optical zoom
10MP Dual Pixel AF, Optical 10x, FOV 10°,OIS, F4.9, 1.22µm + 10MP Dual Pixel AF, Optical 3x, FOV 35°,OIS, F2.4, 1.22µm
12MP Telephoto Camera: PDAF, F2.4, OIS, Pixel size: 1.0μm, FOV: 45˚
Camera | Rear | Ultra-Wide
13MP, f/2.4, 123˚, 1.12µm
12MP Dual Pixel AF, FOV 120°, F2.2, 1.4µm
12MP Ultra Wide Camera: F2.2, Pixel size: 1.12μm, FOV: 123˚
Camera | Rear | Wide
108MP, Samsung HM2, f/1.8, 1/1.52", 0.7µm, dual pixel PDAF
108MP Phase Detection AF, FOV 83°, OIS, F1.8, 0.8µm
12MP Wide-angle Camera: Dual Pixel AF, OIS, F1.8, Pixel size: 1.8μm, FOV: 83˚
Colors
Black
Phantom Black, Phantom Silver, Phantom Violet, Phantom Pink, Phantom Gold, Phantom Red
Phantom Black, Phantom Green, Phantom Silver
Material
Glass front (Gorilla Glass Victus), glass back (Gorilla Glass), aluminum frame
Glass front (Gorilla Glass Victus) (folded), plastic front (unfolded), glass back (Gorilla Glass Victus), aluminum frame
Speakers
Quad speakers 3D panoramic sound system
Stereo speakers
Dimensions
Size | Depth
17.2 mm Folded / 7.6 mm Unfolded
8.9 mm
6.4 mm Unfolded / 16.0 mm Folded
Size | Height
173.3 mm
161.5 mm
158.2 mm
Size | Width
69.8 mm Folded / 133.4 mm Unfolded
75.6 mm
128.1 mm Unfolded / 67.1 mm Folded
Weight
227 g
271 g
Display
Aspect Ratio
4:3
20:9
Brightness
600 nits (typical) / 900 nits (max)
900 nits (1200 nits peak)
Contrast Ratio
4,300,000:1 (typical)
Display Color Depth
10-bit
Display Diagonal
8.01 inch
6.8 inch
7.6 inch
Display Type
Flexible OLED
Dynamic AMOLED 2X (OLED)
Dynamic AMOLED 2X Display Infinity Flex Display
Gamut
100% DCI-P3
Pixel Density
387 ppi
515 ppi
374 ppi
Refresh Rate
60 Hz
120 Hz
120 Hz
Resolution
WQHD+ (2480x1860)
QHD+, 3200x1440
QXGA+ 2208 x 1768
Function
Audio
UHQ 32-bit &DSD64/128 support; PCM: Up to 32 bits, DSD: DSD64/128
Dolby Atmos, Dolby Digital, Dolby Digital Plus
Chipset
Qualcomm Snapdragon 888
Qualcomm SM8350 Snapdragon 888 5G (5 nm)
Fast Charging
67W wired turbo charging (37 mins to 100%)
USB PD 3.0 (PPS) certified Fast Charging
25W Fast charging
GPS
A-GPS, GLONASS, BDS, GALILEO, QZSS, NavIC
GPS, Galileo, Glonass, BeiDou, A-GPS
Graphics
Qualcomm Adreno 660 GPU
Adreno 660
HDR
HDR10+
HDR10+ certified
Operating System
MIUI 12, Android 11
Android 11
Android 11, One UI 3.5
Processor
Qualcomm Kryo 680 CPU, up to 2.84GHz, with Arm Cortex-X1 technology
Octa-core (1x2.84 GHz Kryo 680 & 3x2.42 GHz Kryo 680 & 4x1.80 GHz Kryo 680)
SIM
Dual nano SIM, 5G
Single or dual Nano SIM, 5G
2x Nano SIM + eSIM 5G
Security
Ultrasonic Fingerprint, Face recognition
Knox, virus & malware prevention, secure folder
Sensor
Fingerprint (side-mounted), accelerometer, gyro, proximity, compass, color spectrum, barometer
Ultrasonic Fingerprint sensor, Accelerometer, Barometer, Gyro sensor, Geomagnetic sensor, Hall sensor Proximity sensor, Ambient Light Sensor
Capacitive Fingerprint sensor (side), Accelerometer, Barometer, Gyro sensor, Geomagnetic sensor, Hall sensor, Proximity sensor, Light sensor
Variable Framerate
10~120Hz
Video Recording | Front
FHD 60fps, HD 120fps
Video Recording | Rear
8K 30fps, 4K 60fps, FHD 240fps
Weather Resistance
IP68
IPX8
Wireless Charging
Fast Wireless Charging 2.0
10W Fast Wireless Charging + 4.5W Reverse Wireless Charging
Performance
Memory | Capacity
12 or 16 GB
12 or 16 GB
12GB RAM
Memory | Type
LPDDR5 3200MHz
LPDDR5
Storage
256 or 512 GB UFS 3.1
128, 256, or 512 GB UFS 3.X
256 or 512GB UFS3.1
Production
Accessory
Digitizer: S Pen, sold separately
Availability
2021-04-16
Debut
2021-03-29
2021-01-14 (Galaxy Unpacked 2021)
2021-08-11
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