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	Compare with Realme X9	Compare with Samsung Galaxy S21 Ultra 5G
Full Differences Change compare mode	Specs	Review Specs 128GB 12GB RAM $ 282.00

Realme X9

Samsung Galaxy S21 Ultra 5G

Network
Technology	GSM / CDMA / HSPA / EVDO / LTE / 5G	GSM / CDMA / HSPA / EVDO / LTE / 5G
2G bands	GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2	GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (Dual SIM model only)
	CDMA 800	CDMA 800 / 1900 & TD-SCDMA
3G Network	HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100	HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
	CDMA2000 1xEV-DO	CDMA2000 1xEV-DO
4G Network	LTE	1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 30, 38, 39, 40, 41, 46, 48, 66, 71 - SM-G998U1
		1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 - SM-G998B
5G Network	SA/NSA	2, 5, 25, 41, 66, 71, 260, 261 SA/NSA/Sub6/mmWave - SM-G998U1
		1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78 SA/NSA/Sub6 - SM-G998B
Speed	HSPA, LTE, 5G	HSPA 42.2/5.76 Mbps, LTE (7CA) Cat20 2000/200 Mbps, 5G (5+ Gbps DL)

Launch
Announced	Not announced yet	2021, January 14
Status	Cancelled	Available. Released 2021, January 29

Body
Dimensions	-	165.1 x 75.6 x 8.9 mm (6.5 x 2.98 x 0.35 in)
Weight	-	227 g (Sub6), 229 g (mmWave) (8.01 oz)
Build		Glass front (Gorilla Glass Victus), glass back (Gorilla Glass Victus), aluminum frame
SIM	Dual SIM (Nano-SIM, dual stand-by)	Nano-SIM and eSIM or Dual SIM (2 Nano-SIMs and eSIM, dual stand-by)
		IP68 dust/water resistant (up to 1.5m for 30 min) Stylus support

Display
Type	OLED, HDR10	Dynamic AMOLED 2X, 120Hz, HDR10+, 1500 nits (peak)
Size	6.4 inches, 98.9 cm2	6.8 inches, 112.1 cm2 (~89.8% screen-to-body ratio)
Resolution	1080 x 2400 pixels, 20:9 ratio (~411 ppi density)	1440 x 3200 pixels, 20:9 ratio (~515 ppi density)
Protection		Corning Gorilla Glass Victus
		Always-on display

Platform
OS	Android 11, Realme UI 2.0	Android 11, upgradable to Android 14, One UI 6.1
Chipset		Exynos 2100 (5 nm) - International Qualcomm SM8350 Snapdragon 888 5G (5 nm) - USA/China
CPU		Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - International Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55) - USA/China
GPU		Mali-G78 MP14 - International Adreno 660 - USA/China

Memory
Card slot	No	No
Internal	128GB 8GB RAM, 256GB 12GB RAM	128GB 12GB RAM, 256GB 12GB RAM, 256GB 16GB RAM, 512GB 12GB RAM, 512GB 16GB RAM
	UFS	UFS 3.1

Main Camera
Modules	64 MP, (wide), PDAF 13 MP, (ultrawide) 2 MP, (depth)	108 MP, f/1.8, 24mm (wide), 1/1.33", 0.8µm, PDAF, Laser AF, OIS 10 MP, f/2.4, 72mm (telephoto), 1/3.24", 1.22µm, dual pixel PDAF, OIS, 3x optical zoom 10 MP, f/4.9, 240mm (periscope telephoto), 1/3.24", 1.22µm, dual pixel PDAF, OIS, 10x optical zoom 12 MP, f/2.2, 13mm (ultrawide), 1/2.55", 1.4µm, dual pixel PDAF, Super Steady video
Features	LED flash, HDR, panorama	LED flash, auto-HDR, panorama
Video	4K@30fps, 1080p@30/60/120fps, gyro-EIS	8K@24fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS

Selfie Camera
Modules	Unspecified	40 MP, f/2.2, 26mm (wide), 1/2.8", 0.7µm, PDAF
Features	Panorama	Dual video call, Auto-HDR
Video		4K@30/60fps, 1080p@30fps

Sound
Loudspeaker	Yes	Yes, with stereo speakers
3.5mm jack	Unspecified	No
	24-bit/192kHz audio	32-bit/384kHz audio Tuned by AKG

Comms
WLAN	Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct	Wi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct
Bluetooth	5.1, A2DP, LE	5.2, A2DP, LE
Positioning	GPS, GLONASS, GALILEO, BDS	GPS, GLONASS, BDS, GALILEO
NFC	Unspecified	Yes
Infrared port	No	No
Radio	No	FM radio (Snapdragon model only; market/operator dependent)
USB	USB Type-C 2.0, OTG	USB Type-C 3.2, OTG

Features
Sensors	Fingerprint (under display, optical), accelerometer, gyro, proximity, compass	Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer
		Samsung DeX, Samsung Wireless DeX (desktop experience support) Ultra Wideband (UWB) support

Battery
Type	4500 mAh, non-removable	Li-Ion 5000 mAh, non-removable
Charging	65W wired	25W wired, PD3.0 15W wireless (Qi/PMA) 4.5W reverse wireless

Misc
Colors	Black; other colors	Phantom Black, Phantom Silver, Phantom Titanium, Phantom Navy, Phantom Brown, Navy
SAR		0.77 W/kg (head)     1.02 W/kg (body)
SAR EU		0.71 W/kg (head)     1.58 W/kg (body)
Models		SM-G998B, SM-G998B/DS, SM-G998U, SM-G998U1, SM-G998W, SM-G998N, SM-G9980
Price		$ 282.00 / C$ 447.87 / £ 246.97 / € 405.00 / ₹ 63,499

Tests
Performance		AnTuTu: 657150 (v8) GeekBench: 3518 (v5.1) GFXBench: 33fps (ES 3.1 onscreen)
Display		Contrast ratio: Infinite (nominal)
Loudspeaker		-25.5 LUFS (Very good)
Battery (old)		Endurance rating 114h