Phone Comparison - Realme X3 SuperZoom vs Samsung Galaxy S21 Ultra 5G vs Xiaomi Mi 11 Ultra

Price Comparison (India) - -

general General Info

Manufacturer Realme Samsung Xiaomi
Announced 2020, May 26 2021, January 14 2021, March 29
Status Coming soon. Exp. release 2020, June 02 Coming soon. Exp. release 2021, January 29 Coming soon. Exp. release 2021, April 02
Price Rs. 27,999 ($0.00) [Similarly Priced] Rs. 105,999 ($0.00) [Similarly Priced] Rs. 69,999 ($0.00) [Similarly Priced]
Colors Glacier Blue, Arctic White Phantom Black, Phantom Silver, Phantom Titanium, Phantom Navy, Phantom Brown Ceramic White (Cosmic White), Ceramic Black (Cosmic Black)
Form Factor Candybar Candybar Candybar
Dimension 163.8 x 75.8 x 8.9 mm
(6.45 x 2.98 x 0.35 in)
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 202 g (7.13 oz) 227 g (8.01 oz) 234 g (8.25 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) 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
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
CDMA2000 1xEV-DO
3G Network HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G Network LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 17(700), 18(800), 19(800), 20(800), 25(1900), 26(850), 28(700), 32(1500), 38(2600), 39(1900), 40(2300), 41(2500) LTE 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 - SA/NSA/Sub6/mmWave 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
Messaging
Build Features - Fingerprint Sensor (side-mounted)
Glass front, plastic back, plastic frame
- 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, optical)

hardware Hardware and OS

OS Android 10.0 Android 11 Android 11
User Interface Realme UI One UI 3.0 MIUI 12.5
Processor Octa-core (1x2.96 GHz Kryo 485 & 3x2.42 GHz Kryo 485 & 4x1.78 GHz Kryo 485), Qualcomm SM8150 Snapdragon 855+ (7 nm) 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 (1x2.84 GHz Kryo 680 & 3x2.42 GHz Kryo 680 & 4x1.80 GHz Kryo 680), Qualcomm SM8350 Snapdragon 888 (5 nm)
GPU Adreno 640 (700 MHz) Mali-G78 MP14 - International / Adreno 660 - USA/China/Korea Adreno 660
RAM 12 GB 16 GB 12 GB
Internal Memory 256 GB 512 GB 512 GB
External Memory No microSDXC (uses shared SIM slot) No

display Display

Type IPS LCD Capacitive Touchscreen
Corning Gorilla Glass 5
120Hz refresh rate
QHD+ Dynamic AMOLED 2X Display
120Hz Refresh Rate
HDR10+
1500 nits (peak)
Corning Gorilla Glass Victus
Always-on display
QHD+ AMOLED Screen
120Hz Refresh Rate
HDR10+
900 nits, 1700 nits (peak)
Corning Gorilla Glass Victus
Colors 16M colors 16M Colour 1B Colour
Size 6.6 inches 6.8 inches 6.81 inches
Resolution 1080 x 2400 pixels (399 ppi) 1440 x 3200 pixels (516 ppi) 1440 x 3200 pixels (515 ppi)
Screen-to-Body Ratio 84.60% 89.46% 91.45%
Multi-Touch yes yes yes

multimedia Multimedia

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

camera Camera

Rear Camera 64 MP + 8 MP + 8 MP + 2 MP 108 MP + 10 MP + 10 MP + 12 MP + 0.3 MP 50 MP + 48 MP + 48 MP
Flash LED flash LED flash Dual-LED Dual-tone Flash
Features 64 MP, f/1.8, 26mm (wide), 1/1.76", 1.8µm, PDAF
8 MP, f/3.4, 122mm (periscope telephoto), PDAF, OIS, 5x optical zoom
8 MP, f/2.3, 119˚ (ultrawide), 1/4.0", 1.12µm
2 MP, f/2.4, (macro)
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
50 MP, f/1.9, (wide), PDAF, Laser AF, OIS
48 MP, f/4.1, 120mm (periscope telephoto), 1/2.0", 0.8µm, PDAF, OIS, 5x optical zoom, 120x hybrid zoom
48 MP, (ultrawide), 1/2.0", 0.8µm, PDAF
HDR, Panorama, Selfie Display
Video 1080p@30fps 8K@24fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS 8K@24/30fps, 4K@30/60fps, 1080p@30/60/120/240/960fps, gyro-EIS, HDR10 rec.
Front Camera 32 MP, f/2.2, (wide), 1/2.8", 0.8µm, PDAF
8 MP, f/2.4, (ultrawide)
HDR
1080p@30fps [Similar]
40 MP, f/2.2, 26mm (wide), 0.7µm, PDAF
Dual video call, Auto-HDR
4K@30/60fps, 1080p@30fps [Similar]
20 MP, f/2.3, (wide), 1/3.4", 0.8µm
HDR
1080p@30fps, 720p@120fps, gyro-EIS [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes
3G HSPA 42.2/5.76 Mbps, LTE-A, 5G (1.9 Gbps DL) HSPA 42.2/5.76 Mbps, LTE-A (CA), 5G HSPA 42.2/5.76 Mbps, LTE-A, 5G
Bluetooth 5.0, A2DP, LE 5.2, A2DP, LE 5.2, A2DP, LE, aptX HD
Wi-Fi Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot 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
USB 2.0, Type-C 1.0 reversible connector USB Type-C 3.2, USB On-The-Go USB Type-C 2.0, USB On-The-Go
GPS Yes, with dual-band A-GPS, GLONASS, BDS, GALILEO Yes, with A-GPS, GLONASS, BDS, GALILEO Yes, with dual-band A-GPS, GLONASS, BDS, GALILEO, QZSS
Browser Yes Yes Yes

memory User Memory

Internal 256 GB, 12 GB RAM or 128 GB, 8 GB RAM UFS 3.0 512 GB, 16 GB RAM or 256 GB, 12 GB RAM or 128 GB, 12 GB RAM UFS 3.1 512 GB, 12 GB RAM or 256 GB, 12 GB RAM or 256 GB, 8 GB RAM UFS 3.1
Expandable Storage No microSDXC (uses shared SIM slot) No
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 not present barometer sensor present barometer sensor present
NFC NFC not supported NFC supported NFC supported

battery Battery

Type Non-removable Li-Po Battery
Fast battery charging 30W
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 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
Capacity 4200 mAh 5000 mAh 5000 mAh
Stand by - - -
Talk Time - - -