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Specifications
 

Samsung Galaxy S21 Ultra 5G

Xiaomi Mi 11 Ultra

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Samsung Galaxy S21 Ultra 5G
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Samsung Galaxy S21 Ultra 5G

Xiaomi Mi 11 Ultra

Network
Technology GSM / CDMA / HSPA / EVDO / LTE / 5G GSM / CDMA / HSPA / EVDO / LTE / 5G
2G bands GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (Dual SIM model only) GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
  CDMA 800 / 1900 & TD-SCDMA CDMA 800
3G Network HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
  CDMA2000 1xEV-DO CDMA2000 1xEV-DO
4G Network 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 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 28, 32, 38, 40, 41, 42, 66 - International
  1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 34, 38, 39, 40, 41, 42 - China
5G Network 2, 5, 25, 41, 66, 71, 260, 261 SA/NSA/Sub6/mmWave - SM-G998U1 1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 77, 78, 79 SA/NSA - International
  1, 3, 28, 41, 77, 78, 79 SA/NSA - China
Speed HSPA 42.2/5.76 Mbps, LTE-A (CA), 5G HSPA 42.2/5.76 Mbps, LTE-A, 5G
Launch
Announced 2021, January 14 2021, March 29
Status Available. Released 2021, January 29 Available. Released 2021, April 02
Body
Dimensions 165.1 x 75.6 x 8.9 mm (6.5 x 2.98 x 0.35 in) 164.3 x 74.6 x 8.4 mm (6.47 x 2.94 x 0.33 in)
Weight 227 g (Sub6), 229 g (mmWave) (8.01 oz) 234 g (8.25 oz)
Build Glass front (Gorilla Glass Victus), glass back (Gorilla Glass Victus), aluminum frame Glass front (Gorilla Glass Victus), ceramic back, aluminum frame
SIM Single SIM (Nano-SIM and/or eSIM) or Dual SIM (Nano-SIM and/or eSIM, dual stand-by) Dual SIM (Nano-SIM, dual stand-by)
 IP68 dust/water resistant (up to 1.5m for 30 mins)
Stylus support
IP68 dust/water resistant (up to 1.5m for 30 mins)
Display
Type Dynamic AMOLED 2X, 120Hz, HDR10+, 1500 nits (peak) AMOLED, 1B colors, 120Hz, HDR10+, Dolby Vision, 900 nits, 1700 nits (peak)
Size 6.8 inches, 112.1 cm2 (~89.8% screen-to-body ratio) 6.81 inches, 112.0 cm2 (~91.4% screen-to-body ratio)
Resolution 1440 x 3200 pixels, 20:9 ratio (~515 ppi density) 1440 x 3200 pixels, 20:9 ratio (~515 ppi density)
Protection Corning Gorilla Glass Victus Corning Gorilla Glass Victus
 Always-on display
Platform
OS Android 11, One UI 3.1 Android 11, MIUI 12.5
Chipset Exynos 2100 (5 nm) - International
Qualcomm SM8350 Snapdragon 888 5G (5 nm) - USA/China
Qualcomm SM8350 Snapdragon 888 5G (5 nm)
CPU 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
Octa-core (1x2.84 GHz Kryo 680 & 3x2.42 GHz Kryo 680 & 4x1.80 GHz Kryo 680)
GPU Mali-G78 MP14 - International
Adreno 660 - USA/China
Adreno 660
Memory
Card slot No No
Internal 128GB 12GB RAM, 256GB 12GB RAM, 512GB 16GB RAM 256GB 8GB RAM, 256GB 12GB RAM, 512GB 12GB RAM
 UFS 3.1
UFS 3.1
Main Camera
Modules 108 MP, f/1.8, 24mm (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
50 MP, f/2.0, 24mm (wide), 1/1.12", 1.4µm, Dual Pixel PDAF, Laser AF, OIS
48 MP, f/4.1, 120mm (periscope telephoto), 1/2.0", 0.8µm, PDAF, OIS, 5x optical zoom
48 MP, f/2.2, 12mm, 128˚ (ultrawide), 1/2.0", 0.8µm, PDAF
Features LED flash, auto-HDR, panorama Dual-LED flash, HDR, panorama, 1.1” AMOLED selfie display
Video 8K@24fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS 8K@24fps, 4K@30/60fps, 1080p@30/60fps, gyro-EIS, HDR10+ rec.
Selfie Camera
Modules 40 MP, f/2.2, 26mm (wide), 1/2.8", 0.7µm, PDAF 20 MP, f/2.2, 27mm (wide), 1/3.4", 0.8µm
Features Dual video call, Auto-HDR HDR, panorama
Video 4K@30/60fps, 1080p@30fps 1080p@30/60fps, 720p@120fps, gyro-EIS
Sound
Loudspeaker Yes, with stereo speakers Yes, with stereo speakers
3.5mm jack No No
 32-bit/384kHz audio
Tuned by AKG
24-bit/192kHz audio
Tuned by Harman Kardon
Comms
WLAN 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, DLNA, hotspot
Bluetooth 5.2, A2DP, LE 5.2, A2DP, LE, aptX HD
GPS Yes, with A-GPS, GLONASS, BDS, GALILEO Yes, with tri-band A-GPS, GLONASS, BDS, GALILEO, QZSS, NavIC
NFC Yes Yes
Infrared port No Yes
Radio FM radio (Snapdragon model only; market/operator dependent) No
USB USB Type-C 3.2, USB On-The-Go USB Type-C 2.0, USB On-The-Go
Features
Sensors Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer Fingerprint (under display, optical), accelerometer, gyro, proximity, compass, color spectrum
 Samsung DeX, Samsung Wireless DeX (desktop experience support)
ANT+
Bixby natural language commands and dictation
Samsung Pay (Visa, MasterCard certified)
Ultra Wideband (UWB) support
Battery
Type Li-Ion 5000 mAh, non-removable Li-Po 5000 mAh, non-removable
Charging Fast charging 25W
USB Power Delivery 3.0
Fast Qi/PMA wireless charging 15W
Reverse wireless charging 4.5W
Fast charging 67W, 100% in 36 min (advertised)
Fast wireless charging 67W, 100% in 39 min (advertised)
Reverse wireless charging 10W
Quick Charge 4+
Power Delivery 3.0
Stand-by
Talk time
Misc
Colors Phantom Black, Phantom Silver, Phantom Titanium, Phantom Navy, Phantom Brown Ceramic White, Ceramic Black
SAR 0.77 W/kg (head)     1.02 W/kg (body)    
SAR EU 0.71 W/kg (head)     1.58 W/kg (body)    
Models SM-G998B, SM-G998B/DS, SM-G998U, SM-G998U1, SM-G998W, SM-G998N, SM-G9980
Price $ 999.99 / £ 961.06 / € 1,089.00 / ₹ 92,990 About 1200 EUR
Tests
Performance AnTuTu: 657150 (v8)
GeekBench: 3518 (v5.1)
GFXBench: 33fps (ES 3.1 onscreen)
Display Contrast ratio: Infinite (nominal)
Loudspeaker -25.5 LUFS (Very good)
Battery life Endurance rating 114h

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