Phone Comparison - Samsung Galaxy S21 5G vs Oppo Reno7 5G (China) vs Samsung Galaxy A33 5G

general General Info

Manufacturer Samsung Oppo Samsung
Announced 2021, January 14 2021, November 25 March 2022
Status Coming soon. Exp. release 2021, January 29 Coming soon. Exp. release 2021, December 03 Coming Soon - April 2022
Price Rs. 69,999 ($799.99) [Similarly Priced] - -
Colors Phantom Gray, Phantom White, Phantom Violet, Phantom Pink Black, Blue, Gold Black, White, Blue, Peach
Form Factor Candybar Candybar Candybar
Dimension 151.7 x 71.2 x 7.9 mm
(5.97 x 2.8 x 0.31 in)
156.8 x 72.1 x 7.6 mm
(6.17 x 2.84 x 0.3 in)
159.7 x 74 x 8.1 mm
(6.29 x 2.91 x 0.32 in)
Weight 169 g (5.96 oz) 185 g (6.53 oz) 186 g (6.56 oz)
SIM Type Single SIM (Nano-SIM and/or eSIM), Hybrid Dual SIM (Nano-SIM, dual stand-by) Dual SIM (Nano-SIM, dual stand-by) Single SIM (Nano-SIM), 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 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only)
3G Network HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G Network LTE LTE 1, 2, 3, 4, 5, 7, 8, 28, 34, 38, 39, 40, 41 LTE
5G Network SA/NSA/Sub6/mmWave 1, 28, 41, 77, 78 SA/NSA -
Messaging
Build Features - 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 (under display, optical)
- Fingerprint Sensor (under display, optical)
IP67 dust/water resistant (up to 1m for 30 mins)

hardware Hardware and OS

OS Android 11 Android 11 Android 12
User Interface One UI 3.1 ColorOS 12 One UI 4.1
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 - International / Qualcomm Snapdragon 888 - USA/China/Korea Octa-core (4x2.4 GHz Kryo 670 & 4x1.9 GHz Kryo 670), Qualcomm SM7325 Snapdragon 778G 5G (6 nm) Octa-core (2x2.4 GHz & 6x2.0 GHz), Exynos 1280 processor
GPU Mali-G78 MP14 - International / Adreno 660 - USA/China/Korea Adreno 642L Mali-G68
RAM 8 GB 12 GB 8 GB
Internal Memory 256 GB 256 GB 256 GB
External Memory microSDXC (uses shared SIM slot) No microSDXC

display Display

Type FHD+ Dynamic AMOLED 2X Display
120Hz Refresh Rate
HDR10+
1300 nits (peak)
Corning Gorilla Glass Victus
Always-on display
FHD+ AMOLED Screen
90Hz Refresh Rate
430 nits (typ), 600 nits (HDR)
HDR10+
Corning Gorilla Glass 5
FHD+ Super AMOLED Screen
90Hz Refresh Rate
Corning Gorilla Glass 5
Colors 16M Colour 16M Colors 16M Colors
Size 6.2 inches 6.43 inches 6.4 inches
Resolution 1080 x 2400 pixels (424 ppi) 1080 x 2400 pixels (409 ppi) 1080 x 2400 pixels (411 ppi)
Screen-to-Body Ratio 86.12% 88.42% 83.77%
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 12 MP + 64 MP + 12 MP 64 MP + 8 MP + 2 MP 48 MP + 8 MP + 5 MP + 2 MP
Flash LED Flash LED Flash LED flash
Features 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
64 MP, f/1.7, 26mm (wide), 1/2.0", 0.7µm, PDAF
8 MP, f/2.2, 120˚ (ultrawide)
2 MP, f/2.4, (depth)
HDR, Panorama
48 MP, f/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF, OIS
8 MP, f/2.2, 123˚, (ultrawide), 1/4.0", 1.12µm
5 MP, f/2.4, (macro)
2 MP, f/2.4, (depth)
panorama, HDR
Video 8K@24/30fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS & OIS 4K@30fps, 1080p@30/60fps 4K@30fps, 1080p@30/120fps
Front Camera 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] 32 MP, f/2.4, 26mm (wide), 1/2.8", 0.8µm
Panorama
1080p@30fps [Similar]
13 MP, f/2.2, (wide), 1.12µm
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, 5G
Bluetooth 5.0, A2DP, LE 5.2, A2DP, LE, aptX HD 5.1, A2DP, LE
Wi-Fi 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/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 2.0, 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, QZSS Yes, with A-GPS, GLONASS, GALILEO, BDS
Browser Yes Yes Yes

memory User Memory

Internal 256 GB, 8 GB RAM or 128 GB, 8 GB RAM UFS 3.1 256 GB, 12 GB RAM or 256 GB, 8 GB RAM or 128 GB, 8 GB RAM UFS 2.1 256 GB, 8 GB RAM or 128 GB, 8 GB RAM or 128 GB, 6 GB RAM
Expandable Storage microSDXC (uses shared SIM slot) No microSDXC
USB OTG Supported Supported Supported

Apps Sensors

Fingerprint fingerprint supported fingerprint supported fingerprint supported
Proximity Sensor proximity sensor present proximity sensor present proximity sensor not 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 not 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
Power bank/Reverse wireless charging 4.5W
Non-removable Li-Po Battery
Fast battery Charging 60W
Reverse charging
Non-removable Li-Po Battery
Fast battery Charging 25W
Capacity 4000 mAh 4500 mAh 5000 mAh
Stand by - - -
Talk Time - - -