Phone Comparison - Samsung Galaxy S21 Ultra 5G vs Samsung Galaxy S21 5G vs Xiaomi Poco X3 Pro

general General Info

Manufacturer Samsung Samsung Xiaomi
Announced 2021, January 14 2021, January 14 March 2021
Status Coming soon. Exp. release 2021, January 29 Coming soon. Exp. release 2021, January 29 Coming Soon - March 2021
Price Rs. 105,999 ($0.00) [Similarly Priced] Rs. 69,999 ($799.99) [Similarly Priced] -
Colors Phantom Black, Phantom Silver, Phantom Titanium, Phantom Navy, Phantom Brown Phantom Gray, Phantom White, Phantom Violet, Phantom Pink Phantom Black, Frost Blue, Metal Bronze
Form Factor Candybar Candybar Candybar
Dimension 165.1 x 75.6 x 8.9 mm
(6.5 x 2.98 x 0.35 in)
151.7 x 71.2 x 7.9 mm
(5.97 x 2.8 x 0.31 in)
165.3 x 76.8 x 9.4 mm
(6.51 x 3.02 x 0.37 in)
Weight 227 g (8.01 oz) 169 g (5.96 oz) 215 g (7.58 oz)
SIM Type Single SIM (Nano-SIM and/or eSIM), Hybrid Dual SIM (Nano-SIM, dual stand-by) Single SIM (Nano-SIM and/or eSIM), Hybrid Dual SIM (Nano-SIM, dual stand-by) Hybrid Dual SIM (Nano-SIM, dual stand-by)
2G Network GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (Dual SIM model only)
CDMA2000 1xEV-DO
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (Dual SIM model only)
CDMA2000 1xEV-DO
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G Network HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G Network LTE LTE 1, 2, 3, 4, 5, 7, 8, 20, 28, 38, 40, 41
5G Network SA/NSA/Sub6/mmWave SA/NSA/Sub6/mmWave -
Messaging
Build Features - 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+
- Fingerprint Sensor (under display, ultrasonic)
Samsung Pay (Visa, MasterCard certified)
IP68 dust/water resistant (up to 1.5m for 30 mins)
Samsung DeX, Samsung Wireless DeX (desktop experience support) ANT+
- Fingerprint Sensor (side-mounted)
IP53, dust and splash protection

hardware Hardware and OS

OS Android 11 Android 11 Android 11
User Interface One UI 3.0 One UI 3.1 MIUI 12 for POCO
Processor 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 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 - International / Qualcomm Snapdragon 888 - USA/China/Korea Octa-core (1x2.96 GHz Kryo 485 Gold & 3x2.42 GHz Kryo 485 Gold & 4x1.78 GHz Kryo 485 Silver), Qualcomm Snapdragon 860 (7 nm)
GPU Mali-G78 MP14 - International / Adreno 660 - USA/China/Korea Mali-G78 MP14 - International / Adreno 660 - USA/China/Korea Adreno 640
RAM 16 GB 8 GB 8 GB
Internal Memory 512 GB 256 GB 256 GB
External Memory microSDXC (uses shared SIM slot) microSDXC (uses shared SIM slot) microSDXC (uses shared SIM slot)

display Display

Type QHD+ Dynamic AMOLED 2X Display
120Hz Refresh Rate
HDR10+
1500 nits (peak)
Corning Gorilla Glass Victus
Always-on display
FHD+ Dynamic AMOLED 2X Display
120Hz Refresh Rate
HDR10+
1300 nits (peak)
Corning Gorilla Glass Victus
Always-on display
IPS LCD Screen
120Hz Refresh Rate
HDR10
450 nits (typ)
Corning Gorilla Glass 6
Colors 16M Colour 16M Colour 16M Colour
Size 6.8 inches 6.2 inches 6.67 inches
Resolution 1440 x 3200 pixels (516 ppi) 1080 x 2400 pixels (424 ppi) 1080 x 2400 pixels (395 ppi)
Screen-to-Body Ratio 89.46% 86.12% 84.43%
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack no no yes
Radio FM radio (Snapdragon model only; market/operator dependent) FM radio (Snapdragon model only; market/operator dependent) Unspecified
Games Yes + Downloadable Yes + Downloadable Yes + Downloadable
Loud Speaker yes yes

camera Camera

Rear Camera 108 MP + 10 MP + 10 MP + 12 MP + 0.3 MP 12 MP + 64 MP + 12 MP 48 MP + 8 MP + 2 MP + 2 MP
Flash LED flash LED Flash Dual-LED flash
Features 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
12 MP, f/1.8, 26mm (wide), 1/1.76", 1.8µm, Dual Pixel PDAF, OIS
64 MP, f/2.0, 29mm (telephoto), 1/1.72", 0.8µm, PDAF, OIS, 1.1x optical zoom, 3x hybrid zoom
12 MP, f/2.2, 13mm (ultrawide), 1.4µm, Super Steady video
Auto-HDR, Panorama
48 MP, f/1.8, (wide), 1/2.0", 0.8µm, PDAF
8 MP, f/2.2, 119˚ (ultrawide)
2 MP, f/2.4, (macro)
2 MP, f/2.4, (depth)
HDR, panorama
Video 8K@24fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS 8K@24/30fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS & OIS 4K@30fps, 1080p@30/60fps, gyro-EIS
Front Camera 40 MP, f/2.2, 26mm (wide), 0.7µm, PDAF
Dual video call, Auto-HDR
4K@30/60fps, 1080p@30fps [Similar]
10 MP, f/2.2, 26mm (wide), 1/3.2", 1.22µm, Dual Pixel PDAF, Dual video call, Auto-HDR, 4K@30/60fps, 1080p@30fps [Similar] 20 MP, f/2.2, (wide), 1/3.4", 0.8µm
HDR, panorama
1080p@30fps [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes
3G HSPA 42.2/5.76 Mbps, LTE-A (CA), 5G HSPA 42.2/5.76 Mbps, LTE-A (CA), 5G HSPA 42.2/5.76 Mbps, LTE-A
Bluetooth 5.2, A2DP, LE 5.0, A2DP, LE 5.0, 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/6, dual-band, Wi-Fi Direct, hotspot Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
USB USB Type-C 3.2, USB On-The-Go USB Type-C 3.2, USB On-The-Go USB Type-C 2.0, USB On-The-Go
GPS Yes, with A-GPS, GLONASS, BDS, GALILEO Yes, with A-GPS, GLONASS, BDS, GALILEO Yes, with A-GPS, GLONASS, GALILEO, BDS
Browser Yes Yes Yes

memory User Memory

Internal 512 GB, 16 GB RAM or 256 GB, 12 GB RAM or 128 GB, 12 GB RAM UFS 3.1 256 GB, 8 GB RAM or 128 GB, 8 GB RAM UFS 3.1 256 GB, 8 GB RAM or 128 GB, 6 GB RAM UFS 3.1
Expandable Storage microSDXC (uses shared SIM slot) microSDXC (uses shared SIM slot) microSDXC (uses shared SIM slot)
USB OTG Supported Supported Supported

Apps Sensors

Fingerprint fingerprint supported fingerprint supported fingerprint supported
Proximity Sensor proximity sensor present proximity sensor present proximity sensor present
Accelerometer Sensor accelerometer sensor present accelerometer sensor present accelerometer sensor present
Magnetic-Field Sensor (Compass) magnetic field sensor present magnetic field sensor present magnetic field sensor present
Gyroscope Sensor gyroscope sensor present gyroscope sensor present gyroscope sensor present
Barometer Sensor barometer sensor present barometer sensor present barometer sensor not present
NFC NFC supported NFC supported NFC supported

battery Battery

Type 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
Non-removable Li-Po Battery
Fast battery charging 25W
USB Power Delivery 3.0
Fast Qi/PMA wireless charging 15W
Power bank/Reverse wireless charging 4.5W
Non-removable Li-Po Battery
Fast battery charging 33W, 59% in 30 min, 100% in 59 min (advertised)
Capacity 5000 mAh 4000 mAh 5160 mAh
Stand by - - -
Talk Time - - -