Xiaomi Mix 4 vs Samsung Galaxy S21 Ultra 5G

Phones Images

PHONES
Phone Names	Xiaomi Mix 4	Samsung Galaxy S21 Ultra 5G

Network
2G bands	GSM 850 / 900 / 1800 / 1900	GSM 850 / 900 / 1800 / 1900
3G bands	HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100	HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands	1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 34, 38, 39, 40, 41, 42	1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 30, 38, 39, 40, 41, 46, 48, 66, 71 - SM-G998U1
5G bands	1, 3, 5, 8, 28, 41, 77, 78, 79 SA/NSA/Sub6	2, 5, 25, 41, 66, 71, 260, 261 SA/NSA/Sub6/mmWave - SM-G998U1
Speed	HSPA, LTE, 5G	HSPA 42.2/5.76 Mbps, LTE (7CA) Cat20 2000/200 Mbps, 5G (5+ Gbps DL)
Technology	GSM / CDMA / HSPA / EVDO / LTE / 5G	GSM / CDMA / HSPA / EVDO / LTE / 5G
	CDMA2000 1xEV-DO	1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78 SA/NSA/Sub6 - SM-G998B

Launch
Announced	2021, August 10	2021, January 14
Status	Available. Released 2021, August 16	Available. Released 2021, January 29

Body
Build	Glass front (Gorilla Glass Victus), ceramic back, aluminum frame	Glass front (Gorilla Glass Victus), glass back (Gorilla Glass Victus), aluminum frame
Dimensions	162.6 x 75.4 x 8 mm (6.40 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)
SIM	Nano-SIM + Nano-SIM	· Nano-SIM + eSIM· Nano-SIM + Nano-SIM + eSIM (max 2 at a time)
Weight	225 g (7.94 oz)	227 g (Sub6), 229 g (mmWave) (8.01 oz)
	IP53, dust and splash resistant	IP68 dust/water resistant (up to 1.5m for 30 min) Stylus support

Display
Protection	Corning Gorilla Glass Victus	Corning Gorilla Glass Victus
Resolution	1080 x 2400 pixels, 20:9 ratio (~395 ppi density)	1440 x 3200 pixels, 20:9 ratio (~515 ppi density)
Size	6.67 inches, 107.4 cm2 (~87.6% screen-to-body ratio)	6.8 inches, 112.1 cm2 (~89.8% screen-to-body ratio)
Type	AMOLED, 1B colors, 120Hz, HDR10+, Dolby Vision, 800 nits (HBM)	Dynamic AMOLED 2X, 120Hz, HDR10+, 1500 nits (peak)
	-	Always-on display

Platform
CPU	Octa-core (1x2.99 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55)	Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - InternationalOcta-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55) - USA/China
Chipset	Qualcomm SM8350 Snapdragon 888+ 5G (5 nm)	Exynos 2100 (5 nm) - InternationalQualcomm SM8350 Snapdragon 888 5G (5 nm) - USA/China
GPU	Adreno 660	Mali-G78 MP14 - InternationalAdreno 660 - USA/China
OS	Android 11, MIUI 12.5	Android 11, up to 4 major Android upgrades, One UI 6.1

Memory
Card slot	No	No
Internal	128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM, 512GB 12GB RAM	128GB 8GB RAM, 128GB 12GB RAM, 256GB 12GB RAM, 256GB 16GB RAM, 512GB 12GB RAM, 512GB 16GB RAM
	UFS 3.1	UFS 3.1

Main Camera
Features	Laser AF, color spectrum sensor, Dual-LED flash, HDR, panorama	Laser AF, LED flash, auto-HDR, panorama
Quad	-	108 MP, f/1.8, 24mm (wide), 1/1.33", 0.8µm, PDAF, OIS 10 MP, f/2.4, 72mm (telephoto), 1/3.24", 1.22µm, dual pixel PDAF, OIS, 3x optical zoom 10 MP, f/4.9, 240mm (periscope telephoto), 1/3.24", 1.22µm, dual pixel PDAF, OIS, 10x optical zoom 12 MP, f/2.2, 13mm (ultrawide), 1/2.55", 1.4µm, dual pixel PDAF, Super Steady video
Single	20 MP, 27mm (wide), 1/3.4", 0.8µm, under display	-
Triple	108 MP, f/1.9, 24mm (wide), 1/1.33", 0.8µm, PDAF, OIS 8 MP, f/4.1, 120mm (periscope telephoto), PDAF, OIS, 5x optical zoom 13 MP, f/2.2, 12mm, 123˚ (ultrawide), 1/3.06", 1.12µm	-
Video	8K@24fps, 4K@30/60fps, 1080p@30/60/120/480fps; gyro-EIS, HDR10+	8K@24fps, 4K@30/60fps, 1080p@30/60/120/240fps, HDR10+, stereo sound rec., gyro-EIS

Selfie camera
Features	HDR	HDR
Single	20 MP, 27mm (wide), 1/3.4", 0.8µm, under display	40 MP, f/2.2, 26mm (wide), 1/2.8", 0.7µm, PDAF
Video	1080p@30fps	4K@30/60fps, 1080p@30fps

Sound
3.5mm jack	No	No
35mm jack	No	No
Loudspeaker	Yes, with stereo speakers	Yes, with stereo speakers
	24-bit/192kHz audio Tuned by Harman Kardon	32-bit/384kHz audio Tuned by AKG

Comms
Bluetooth	5.2, A2DP, LE, aptX HD	5.2, A2DP, LE
Infrared port	Yes	-
NFC	Yes	Yes
Positioning	GPS (L1+L5), GLONASS (G1), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5)	GPS, GLONASS, BDS, GALILEO
Radio	No	FM radio (Snapdragon model only; market/operator dependent)
USB	USB Type-C 2.0	USB Type-C 3.2, OTG
WLAN	Wi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct	Wi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct

Features
Sensors	Fingerprint (under display, optical), accelerometer, gyro, proximity, compass	Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer
	Ultra Wideband (UWB) support	Samsung DeX, Samsung Wireless DeX (desktop experience support) Bixby natural language commands and dictation Samsung Pay (Visa, MasterCard certified) Ultra Wideband (UWB) support

Battery
Charging	120W wired, PD3.0, QC4, 100% in 15 min 50W wireless, 100% in 28 min	25W wired, PD3.0 15W wireless (Qi) 4.5W reverse wireless
Type	Li-Po 4500 mAh	Li-Ion 5000 mAh

Misc
Colors	Ceramic Black, Ceramic White, Shadow Gray	Phantom Black, Phantom Silver, Phantom Titanium, Phantom Navy, Phantom Brown, Navy
Models	2106118C	SM-G998B, SM-G998B/DS, SM-G998U, SM-G998U1, SM-G998W, SM-G998N, SM-G9980
Price	About 660 EUR	$ 240.01 / C$ 353.20 / £ 202.99 / € 264.99
SAR	-	0.77 W/kg (head)     1.02 W/kg (body)
SAR EU	-	0.71 W/kg (head)     1.58 W/kg (body)

Pricing
128GB 12GB RAM	-	$ 384.99
256GB 12GB RAM	-	$ 998.00
512GB 12GB RAM	-	$ 1,179.99
RENEWED	-	$ 459.00

Tests
Battery life	-	Endurance rating 114h
Camera	-	Photo / Video
Display	-	Contrast ratio: Infinite (nominal)
Loudspeaker	-	-25.5 LUFS (Very good)
Performance	-	AnTuTu: 657150 (v8) GeekBench: 3518 (v5.1) GFXBench: 33fps (ES 3.1 onscreen)

OUR TESTS
Battery (old)	-	Endurance rating 114h
Camera	-	Photo / Video
Display	-	1023 nits max brightness (measured)
Loudspeaker	-	-25.5 LUFS (Very good)
Performance	-	AnTuTu: 657150 (v8) GeekBench: 3518 (v5.1) GFXBench: 33fps (ES 3.1 onscreen)