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OPPO Reno 15 vs Samsung Galaxy M21s comparison

 Sponsored Compare OPPO Reno 15
OPPO Reno 15
Compare Samsung Galaxy M21s
Samsung Galaxy M21s
key specs
Display6.32-inch6.40-inch
ProcessorMediaTek Dimensity 8450Samsung Exynos 9611
Front Camera50-megapixel 32-megapixel
Rear Camera200-megapixel + 50-megapixel + 50-megapixel 64-megapixel + 8-megapixel + 5-megapixel
RAM12GB4GB
Storage256GB64GB
Battery Capacity6200mAh6000mAh
OSAndroid 16Android 10
Resolution1216x2640 pixels1080x2340 pixels
general
BrandOPPOSamsung
ModelReno 15Galaxy M21s
Release dateJanuary 8, 2026November 5, 2020
AI EnabledYes-
Launched in IndiaNoNo
Form factorTouchscreenTouchscreen
Body typeGlass-
Dimensions (mm)151.21 x 72.42 x 8.13159.20 x 75.10 x 8.90
Weight (g)188.00191.00
IP ratingIP69-
Battery capacity (mAh)62006000
Removable batteryNo-
Fast charging80W Fast ChargingProprietary
Wireless chargingNo-
ColoursAurora Blue, Twilight Blue, Aurora WhiteBlack, Blue
display
Refresh Rate120 Hz-
Resolution StandardFHD+-
Screen size (inches)6.326.40
TouchscreenYesYes
Resolution1216x2640 pixels1080x2340 pixels
Pixels per inch (PPI)450-
hardware
Processorocta-core8 MHz
Processor makeMediaTek Dimensity 8450Samsung Exynos 9611
RAM12GB4GB
Internal storage256GB64GB
Expandable storageNoYes
Expandable storage typeNomicroSD
Dedicated microSD slotNoYes
Expandable storage up to (GB)-512
camera
Rear camera200-megapixel (f/1.8) + 50-megapixel (f/2.0) + 50-megapixel (f/2.8)64-megapixel (f/1.8) + 8-megapixel (f/2.2) + 5-megapixel (f/2.2)
No. of Rear Cameras3-
Front camera50-megapixel (f/2.0)32-megapixel (f/2.0)
No. of Front Cameras1-
Lens Type (Second Rear Camera)Ultra Wide-Angle-
Lens Type (Third Rear Camera)Telephoto-
software
Operating systemAndroid 16Android 10
SkinColorOS 16One UI Core
connectivity
Wi-FiYesYes
Wi-Fi standards supported802.11 a/b/g/n/ac/ax802.11 a/b/g/n/ac
GPSYesYes
BluetoothYes, v 5.40Yes, v 5.00
NFCYes-
InfraredYes-
USB Type-CYesYes
HeadphonesType-C3.5mm
Number of SIMs22
Active 4G on both SIM cardsYes-
sim 1
SIM TypeNano-SIMNano-SIM
GSM/CDMAGSMGSM
3GYesYes
4G/ LTEYesYes
5GYes-
sim 2
SIM TypeNano-SIMNano-SIM
GSM/CDMAGSMGSM
3GYesYes
4G/ LTEYesYes
5GYes-
sensors
Face unlockYes-
In-Display Fingerprint SensorYes-
Proximity sensorYesYes
AccelerometerYesYes
Ambient light sensorYesYes
GyroscopeYesYes
Fingerprint sensor-Yes
Compass/ Magnetometer-Yes
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