Xiaomi Mi Mix 4 vs Samsung Galaxy S21 Ultra 5G

General Info

Manufacturer
Xiaomi	Samsung
Announced
2021, August 10	2021, January 14
Status
Coming soon. Exp. release 2021, August	Coming soon. Exp. release 2021, January 29
Price
-	Rs. 105,999 ($0.00) [Similarly Priced]
Colors
Ceramic Black, Ceramic White, Shadow Gray	Phantom Black, Phantom Silver, Phantom Titanium, Phantom Navy, Phantom Brown
Form Factor
Candybar	Candybar
Dimension
162.6 x 75.4 x 8 mm (6.4 x 2.97 x 0.31 in)	165.1 x 75.6 x 8.9 mm (6.5 x 2.98 x 0.35 in)
Weight
225 g (7.94 oz)	227 g (8.01 oz)
SIM Type
Dual SIM (Nano-SIM, dual stand-by)	Single SIM (Nano-SIM and/or eSIM), Hybrid Dual SIM (Nano-SIM, dual stand-by)
2G Network
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2	GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (Dual SIM model only) CDMA2000 1xEV-DO
3G Network
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100	HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G Network
LTE 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 34, 38, 39, 40, 41, 42	LTE
5G Network
1, 3, 5, 8, 28, 41, 77, 78, 79 SA/NSA/Sub6	SA/NSA/Sub6/mmWave
Messaging

Build Features
- Fingerprint Sensor (under display, optical) IP53, dust and splash protection	- Fingerprint Sensor (under display, ultrasonic) Samsung Pay (Visa, MasterCard certified) IP68 dust/water resistant (up to 1.5m for 30 mins) Stylus support Samsung DeX, Samsung Wireless DeX (desktop experience support) ANT+

OS
Android 11	Android 11
User Interface
MIUI 12.5	One UI 3.0
Processor
Octa-core (1x2.99 GHz Kryo 680 & 3x2.42 GHz Kryo 680 & 4x1.80 GHz Kryo 680), Qualcomm SM8350 Snapdragon 888 Plus 5G (5 nm) [Similar]	Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - International / Octa-core (1x2.84 GHz Kryo 680 & 3x2.42 GHz Kryo 680 & 4x1.80 GHz Kryo 680 - USA/China/Korea, Exynos 2100 - Global / Qualcomm Snapdragon 875 - USA [Similar]
GPU
Adreno 660 [Similar]	Mali-G78 MP14 - International / Adreno 660 - USA/China/Korea [Similar]
RAM
12 GB [Browse Similar]	16 GB [Browse Similar]
Internal Memory
512 GB	512 GB
External Memory
No	microSDXC (uses shared SIM slot)

Type
FHD+ AMOLED Screen True-tone 120Hz Refresh Rate HDR10+ Dolby Vision, Wide color gamut 800 nits (HBM) Corning Gorilla Glass Victus	QHD+ Dynamic AMOLED 2X Display 120Hz Refresh Rate HDR10+ 1500 nits (peak) Corning Gorilla Glass Victus Always-on display
Colors
1B colors	16M Colour
Size
6.67 inches [Similar]	6.8 inches [Similar]
Resolution
1080 x 2400 pixels (395 ppi)	1440 x 3200 pixels (516 ppi)
Screen-to-Body Ratio
87.42%	89.46%
Multi-Touch

Rear Camera
108 MP + 8 MP + 13 MP [Similar]	108 MP + 10 MP + 10 MP + 12 MP + 0.3 MP [Similar]
Flash
Dual-LED flash	LED flash
Features
108 MP, f/1.9, 24mm (wide), 1/1.33", 0.8µm, Dual Pixel PDAF, Laser AF, OIS 8 MP, f/4.1, 120mm (periscope telephoto), PDAF, OIS, 5x optical zoom 13 MP, f/2.4, 123˚ (ultrawide), 1/3.06", 1.12µm HDR, Panorama	108 MP (2nd gen), f/1.8, 26mm (wide), 1/1.33", 0.8µm, PDAF, Laser AF, OIS 10 MP, f/4.9, 240mm (periscope telephoto), 1/3.24", 1.22µm, dual pixel PDAF, OIS, 10x optical zoom 10 MP, f/2.4, 70mm (telephoto), 1/3.24", 1.22µm, dual pixel PDAF, OIS, 3x optical zoom 12 MP, f/2.2, 13mm (ultrawide), 1/2.55", 1.4µm, dual pixel PDAF, Super Steady video auto-HDR, panorama
Video
8K@24fps, 4K@30/60fps, 1080p@30/60/120/480fps; gyro-EIS, HDR10+	8K@24fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS
Front Camera
Under-display 20 MP, 27mm (wide), 1/3.4", 0.8µm 1080p@30fps [Similar]	40 MP, f/2.2, 26mm (wide), 0.7µm, PDAF Dual video call, Auto-HDR 4K@30/60fps, 1080p@30fps [Similar]

3.5mm Jack

Radio
No	FM radio (Snapdragon model only; market/operator dependent)
Games
Yes + Downloadable	Yes + Downloadable
Loud Speaker

GPRS
Yes	Yes
Edge
Yes	Yes
3G
HSPA 42.2/5.76 Mbps, LTE-A, 5G	HSPA 42.2/5.76 Mbps, LTE-A (CA), 5G
Bluetooth
5.2, A2DP, LE, aptX HD	5.2, A2DP, LE
Wi-Fi
Wi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct, hotspot	Wi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct, hotspot
USB
USB Type-C 2.0	USB Type-C 3.2, USB On-The-Go
GPS
Yes, with dual-band A-GPS, GLONASS, GALILEO, BDS, QZSS, NavIC	Yes, with A-GPS, GLONASS, BDS, GALILEO
Browser
Yes	Yes

Internal
512 GB, 12 GB RAM or 256 GB, 12 GB RAM or 256 GB, 8 GB RAM or 128 GB, 8 GB RAM UFS 3.1	512 GB, 16 GB RAM or 256 GB, 12 GB RAM or 128 GB, 12 GB RAM UFS 3.1
Expandable Storage
No	microSDXC (uses shared SIM slot)
USB OTG
Supported	Supported

Fingerprint

Proximity Sensor

Accelerometer Sensor

Magnetic-field Sensor (Compass)

Gyroscope Sensor

Barometer Sensor

NFC

Type
Non-removable Li-Po Battery Fast charging 120W, 100% in 15 min (advertised) Fast wireless charging 50W, 100% in 28 min (advertised) Quick Charge 4, Power Delivery 3.0	Non-removable Li-Po Battery Fast battery charging 25W USB Power Delivery 3.0 Fast Qi/PMA wireless charging 15W Reverse wireless charging 4.5W
Capacity
4500 mAh	5000 mAh
Stand by
-	-
Talk Time
-	-