Side-by-side technical data

Samsung Galaxy S21 5G vs OnePlus 9

Comparison between Samsung Galaxy S21 5G and OnePlus 9: camera, battery, fast charging, display, performance and colors, side by side. More phones from Samsung and OnePlus.

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Samsung

Galaxy S21 5G

OnePlus

9

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The verdict

Neither runs away with it: each wins something.

Category
Category	Galaxy S21 5G	9
Design & display	8.3	8.0
Performance & hardware	6.5	6.6
Camera	7.2	6.4
Connectivity	6.9	7.0
Battery & charging	6.5	7.0

Which one is for you?

Samsung Galaxy S21 5G, if you care about…

Peak Display Brightness: 1,300 nits; against 1,100 nits
Display Pixel Density: 421 ppi; against 402 ppi
Weight: 169 g; against 192 g
Battery Features: Non-Removable, Fast Charging, Wireless Charging, Reverse Wireless Charging, Reverse Charging; against Fast Charging, Wireless Charging

OnePlus 9, if you care about…

Battery Capacity: 4,500 mAh; against 4,000 mAh
RAM Capacity: 12 GB; against 8 GB
Bluetooth Version: Bluetooth 5.2; against Bluetooth 5.0
Fast Charge Power: 65 W; against 25 W

Specification comparison

Show differences only

Performance

Specification	Galaxy S21 5G	9
Processor Model	Samsung Exynos 2100	Qualcomm Snapdragon 888
Processor Process Size	5 nm	5 nm
Graphics GPU	Mali-G78 MP14	Qualcomm Adreno 660
Storage Type	UFS 3.1	UFS 3.1
Maximum CPU Clock	2.91 GHz Best value	2.84 GHz
Maximum Storage Capacity	256 GB	256 GB
AnTuTu Score	899,100	—
CPU Description	Octa-core CPU with Cortex-X1, Cortex-A78, and Cortex-A55 cores.	Octa-core CPU: 1×2.84 GHz Cortex-X1, 3×2.42 GHz Cortex-A78 and 4×1.80 GHz Cortex-A55.
Processor Type	Octa-Core	Octa-Core
64-Bit Processor	Yes	—
RAM Capacity	8 GB	12 GB Best value
RAM Type	LPDDR5	—
AnTuTu version	v11	—

Design

Specification	Galaxy S21 5G	9
Body Colors	Grey, White, Purple, Pink	White, Blue, Black
Body Thickness	7.9 mm Best value	8.7 mm
Body Width	71.2 mm	74.2 mm
Body Height	151.7 mm	160 mm
Weight	169 g Best value	192 g
Usable Surface	87.2 %	87.6 % Best value
Body Materials	Glass, Plastic, Aluminium Alloy Best value	Glass, Plastic
Resistance Features	IP68	IP68
Waterproof Depth	1.5 m	—

Battery

Specification	Galaxy S21 5G	9
Battery Capacity	4,000 mAh	4,500 mAh Best value
Battery Type	Li-Ion	Li-Po
Fast Charge Power	25 W	65 W Best value
Battery Features	Non-Removable, Fast Charging, Wireless Charging, Reverse Wireless Charging, Reverse Charging Best value	Fast Charging, Wireless Charging
Wireless charging power	15 W	15 W

Display

Specification	Galaxy S21 5G	9
Display Aspect Ratio	20:9	20:9
Display Technology	Dynamic AMOLED 2X	AMOLED
Peak Display Brightness	1,300 nits Best value	1,100 nits
Display Diagonal	6.2″	6.55″ Best value
Display Horizontal Resolution	1,080 px	1,080 px
Display Vertical Resolution	2,400 px	2,400 px
Display Pixel Density	421 ppi Best value	402 ppi
Display Refresh Rate	120 Hz	120 Hz
Display Features	Gorilla Glass Victus, HDR10+, Hole-Punch Notch, Always-On Display, Capacitive Touch, Multi-Touch, Scratch Resistant, Frameless	Gorilla Glass 5, HDR10+, 120Hz

Sensors

Specification	Galaxy S21 5G	9
Fingerprint Sensor Placement	Under Display	Under Display

Sensor

Specification	Galaxy S21 5G	9
Sensor Features	Fingerprint Sensor, Accelerometer, Gyroscope, Proximity Sensor, Compass, Barometer, Hall Sensor, Light Sensor	Fingerprint Sensor, Accelerometer, Gyroscope, Proximity Sensor, Compass

Software

Specification	Galaxy S21 5G	9
Operating System	Android 11	Android 11
OS Family	Android	Android
OS Version	11	11
OS Update Support	2 years	—
Google Services	Yes	—
Widevine L1	Yes	—

Connectivity

Specification	Galaxy S21 5G	9
SIM Configurations	Nano-SIM + eSIM, Dual Nano-SIM + eSIM, Dual SIM Dual Standby Best value	Single Nano-SIM, Dual Nano-SIM
Cellular Bands	2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS B1, 3G UMTS B2, 3G UMTS B3, 3G UMTS B4, 3G UMTS B5, 3G UMTS B8, 4G LTE B1, 4G LTE B2, 4G LTE B3, 4G LTE B4, 4G LTE B5, 4G LTE B7, 4G LTE B8, 4G LTE B12, 4G LTE B13, 4G LTE B14, 4G LTE B17, 4G LTE B18, 4G LTE B19, 4G LTE B20, 4G LTE B25, 4G LTE B26, 4G LTE B28A, 4G LTE B28B, 4G LTE B30, 4G LTE B38, 4G LTE B39, 4G LTE B40, 4G LTE B41, 4G LTE B46, 4G LTE B48, 4G LTE B66, 4G LTE B71, 5G NR n1, 5G NR n2, 5G NR n3, 5G NR n5, 5G NR n7, 5G NR n8, 5G NR n20, 5G NR n25, 5G NR n26, 5G NR n28a, 5G NR n28b, 5G NR n38, 5G NR n40, 5G NR n41, 5G NR n66, 5G NR n71, 5G NR n77, 5G NR n78, 5G NR n258, 5G NR n260, 5G NR n261	2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS 800, 3G UMTS B850, 3G UMTS B900, 3G UMTS 1700 AWS, 3G UMTS 1800, 3G UMTS 1900, 3G UMTS 2100, 4G LTE B1, 4G LTE B2, 4G LTE B3, 4G LTE B4, 4G LTE B5, 4G LTE B7, 4G LTE B8, 4G LTE B12, 4G LTE B13, 4G LTE B17, 4G LTE B18, 4G LTE B19, 4G LTE B20, 4G LTE B25, 4G LTE B26, LTE B28, 4G LTE B32, 4G LTE B38, 4G LTE B39, 4G LTE B40, 4G LTE B41, 4G LTE B66, 5G NR n1, 5G NR n3, 5G NR n5, 5G NR n7, 5G NR n8, 5G NR n20, 5G NR n28, 5G NR n38, 5G NR n40, 5G NR n41, 5G NR n66, 5G NR n78
Cellular Technologies	GSM, CDMA, HSPA, EVDO, LTE, 5G	GSM, CDMA, HSPA, LTE, 5G
Wi-Fi Standards	Wi-Fi 802.11a/b/g/n/ac/6	Wi-Fi 802.11a/b/g/n/ac/6
Wi-Fi Features	Dual Band, Wi-Fi Hotspot, Wi-Fi Direct, Wi-Fi Display	Dual Band, Wi-Fi Direct, DLNA
Bluetooth Version	Bluetooth 5.0	Bluetooth 5.2 Best value
Bluetooth Profiles	A2DP, LE	A2DP, LE, aptX HD
Navigation Systems	GPS, A-GPS, GLONASS, BeiDou, Galileo Best value	GPS, GLONASS, BeiDou, Galileo
Connectivity Features	Samsung DeX, NFC, FM Radio, USB Charging, USB Mass Storage, USB OTG, USB Host 3.1, USB Type-C, Computer Sync, OTA Sync, Tethering, VoLTE, ANT+	NFC, USB Type-C, USB OTG
USB Version	USB 3.2	USB 3.1
SAR American Head	0.74 W/kg	—
SAR American Body	1.08 W/kg	—
SAR (EU) head	0.46 W/kg	—
SAR (EU) body	1.51 W/kg	—

Audio

Specification	Galaxy S21 5G	9
Audio Features	Stereo Speakers, Dolby Atmos, Noise-Cancellation Microphone, A2DP, LE	Stereo Speakers, Hi-Res Audio, aptX HD

Technical

Specification	Galaxy S21 5G	9
Model numbers	SM-G991B, SM-G991B/DS, SM-G991U, SM-G991U1, SM-G991W, SM-G991N, SM-G9910, SM-G991Q, SCG09	LE2113, LE2111, LE2110, LE2117, LE2115