Phone Comparison - Samsung Galaxy S21 Ultra 5G vs Google Pixel 7a vs Xiaomi Redmi Note 14 Pro

Price Comparison (India) -

general General Info

Manufacturer Samsung Google Xiaomi
Announced 2021, January 14 2023, May 10 September 2024
Status Coming soon. Exp. release 2021, January 29 Available. Released 2023, May 10 Available - September 2024
Price Rs. 105,999 ($0.00) [Similarly Priced] Rs. 43,999 ($0.00) [Similarly Priced] Rs. 24,999 ($0.00) [Similarly Priced]
Colors Phantom Black, Phantom Silver, Phantom Titanium, Phantom Navy, Phantom Brown Arctic Blue, Carbon, Cotton Black, White, Purple, Green
Form Factor Candybar Candybar Candybar
Dimension 165.1 x 75.6 x 8.9 mm
(6.5 x 2.98 x 0.35 in)
152 x 72.9 x 9 mm
(5.98 x 2.87 x 0.35 in)
162.3 x 74.4 x 8.2 mm or 8.5 mm
(6.39 x 2.93 x 0.32 in or 0.33 in)
Weight 227 g (8.01 oz) 193.5 g (6.81.0.18 oz) 190 g (6.7 oz)
SIM Type Single SIM (Nano-SIM and/or eSIM), Hybrid Dual SIM (Nano-SIM, dual stand-by) Nano-SIM and eSIM Nano-SIM, eSIM, 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 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
CDMA 800
3G Network HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100 HSDPA 800 / 850 / 900 / 2100 - China
CDMA2000 1x
4G Network LTE 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 20, 25, 26, 28, 29, 30, 38, 40, 41, 48, 66, 71 - GWKK3, G0DZQ
1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 21, 25, 28, 32, 38, 39, 40, 41, 42, 66 - GHL1X, G82U8
1, 3, 5, 8, 19, 34, 38, 39, 40, 41 - China
5G Network SA/NSA/Sub6/mmWave 1, 2, 3, 5, 7, 8, 12, 14, 20, 25, 28, 30, 38, 41, 48, 66, 71, 77, 78 SA/NSA/Sub6 - GWKK3
1, 2, 3, 5, 7, 8, 12, 14, 20, 25, 28, 30, 38, 41, 48, 66, 71, 77, 78, 260, 261 SA/NSA/Sub6/mmWave - G0DZQ
1, 2, 3, 5, 7, 8, 12, 20, 25, 28, 38, 40, 41, 66, 75, 76, 77, 78, 79 SA/NSA/Sub6 - GHL1X, G82U8
1, 3, 5, 8, 28, 38, 41, 77, 78 SA/NSA - China
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, optical)
IP67 dust/water resistant (up to 1m for 30 min)
- Fingerprint Sensor (under display, optical)
IP68/IP69K dust/water resistant (up to 2m for 24 hours)

hardware Hardware and OS

OS Android 11 Android 13 Android 14, up to 3 major Android upgrades
User Interface One UI 3.0 - HyperOS
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 (2x2.85 GHz Cortex-X1 & 2x2.35 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55), Google Tensor G2 (5 nm) Octa-core (4x2.5 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55), Mediatek Dimensity 7300 Ultra (4 nm)
GPU Mali-G78 MP14 - International / Adreno 660 - USA/China/Korea Mali-G710 MP7 Mali-G615 MC2
RAM 16 GB 6 GB 12 GB
Internal Memory 512 GB 128 GB 512 GB
External Memory microSDXC (uses shared SIM slot) No No

display Display

Type QHD+ Dynamic AMOLED 2X Display
120Hz Refresh Rate
HDR10+
1500 nits (peak)
Corning Gorilla Glass Victus
Always-on display
FHD+ OLED Screen
HDR
90Hz Refresh Rate
Corning Gorilla Glass
FHD+ AMOLED Screen
120Hz Refresh Rate, HDR10+
Dolby Vision, 3000 Nits (peak)
Corning Gorilla Glass Victus 2
Colors 16M Colour 16M Colors 68B colors
Size 6.8 inches 6.1 inches 6.67 inches
Resolution 1440 x 3200 pixels (516 ppi) 1080 x 2400 pixels (431 ppi) 1220 x 2712 pixels (446 ppi)
Screen-to-Body Ratio 89.46% 81.24% 88.87%
Multi-Touch yes yes yes

multimedia Multimedia

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

camera Camera

Rear Camera 108 MP + 10 MP + 10 MP + 12 MP + 0.3 MP 64 MP + 13 MP 50 MP + 8 MP + 2 MP
Flash LED flash Dual-LED Flash 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
64 MP, f/1.9, 26mm (wide), 1/1.73", 0.8µm, Dual Pixel PDAF, OIS
13 MP, f/2.2, 120˚ (ultrawide), 1.12µm
Pixel Shift, Auto-HDR, Panorama
50 MP, f/1.5, (wide), 1/1.96", 0.8µm, PDAF, OIS
8 MP, f/2.2, 120˚ (ultrawide), 1/4.0", 1.12µm
2 MP, f/2.4, (macro)
HDR, Panorama
Video 8K@24fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS 4K@30/60fps, 1080p@30/60/120/240fps; gyro-EIS, OIS 4K@24/30fps, 1080p@30/60/120fps, gyro-EIS, OIS
Front Camera 40 MP, f/2.2, 26mm (wide), 0.7µm, PDAF
Dual video call, Auto-HDR
4K@30/60fps, 1080p@30fps [Similar]
13 MP, f/2.2, 20mm (ultrawide), 1.12µm
Auto-HDR, panorama
4K@30fps, 1080p@30fps [Similar]
20 MP, f/2.2, (wide), 1/4.0"
HDR, panorama
Video - 1080p@30/60fps [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, LTE-A (CA), 5G HSPA, LTE, 5G
Bluetooth 5.2, A2DP, LE 5.2, A2DP, LE 5.4, A2DP, LE, LHDC
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 Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct
USB USB Type-C 3.2, USB On-The-Go USB Type-C 3.1 USB Type-C 2.0, OTG
GPS Yes, with A-GPS, GLONASS, BDS, GALILEO GPS, GLONASS, GALILEO, BDS, QZSS GPS, GLONASS, BDS, GALILEO, QZSS
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 3.1 128 GB, 6 GB RAM UFS 3.1 512 GB, 12 GB RAM or 256 GB, 12 GB RAM or 256 GB, 8 GB RAM or 128 GB, 8 GB RAM UFS 2.2
Expandable Storage microSDXC (uses shared SIM slot) No No
USB OTG Supported Not 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 not 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 18W, PD3.0
Non-removable Li-Po Battery
Fast Battery Charging 45W wired, PD3.0
Capacity 5000 mAh 4385 mAh 5500 mAh
Stand by - - -
Talk Time - - -