Two devices. One clear decision.

LAUNCH DATE3 fields

Specification	Galaxy M51	Spark 20C
Announced	August 31, 2020	December 5, 2023
Released	2020-09-11	2023, December
Status	September 11, 2020	Available

NETWORK6 fields

Specification	Galaxy M51	Spark 20C
2G Bands	GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2	GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G Bands	HSDPA 850 / 900 / 2100	HSDPA 900 / 2100
4G LTE	1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 26, 28, 38, 40, 41, 66	LTE
5G	No	No
Speed	LTE	LTE
Technology	4G/LTE/2G	4G/LTE/GSM

BODY5 fields

Specification	Galaxy M51	Spark 20C
Build	Glass front (Gorilla Glass 3+), plastic back, plastic frame	Glass front, plastic back, plastic frame
Dimensions	163.9 x 76.3 x 9.5 mm (6.45 x 3.00 x 0.37 in)	163.7 x 75.6 x 8.6 mm (6.44 x 2.98 x 0.34 in)
IP Rating	No IP rating	No IP rating
SIM	Nano-SIM + Nano-SIM	Nano-SIM + Nano-SIM
Weight	213 g (7.51 oz)	186 g (6.56 oz)

DISPLAY7 fields

Specification	Galaxy M51	Spark 20C
Brightness	650 nits (rated), 674 nits (measured)	450 nits (peak)
Protection	Corning Gorilla Glass 3+	—
Refresh Rate	60Hz	90Hz
Resolution	1080 x 2400 pixels, 20:9 ratio (~393 ppi density)	720 x 1612 pixels, 20:9 ratio (~267 ppi density)
Screen-to-body	~86.7%	~84.6%
Size	6.7 inches, 108.4 cm2 (~86.7% screen-to-body ratio)	6.6 inches, 104.6 cm2 (~84.6% screen-to-body ratio)
Type	Super AMOLED Plus	IPS LCD, 90Hz

PLATFORM4 fields

Specification	Galaxy M51	Spark 20C
CPU	Octa-core (2x2.2 GHz Kryo 470 Gold & 6x1.8 GHz Kryo 470 Silver)	Octa-core (8x2.2 GHz Cortex-A53)
Chipset	Qualcomm SDM730 Snapdragon 730G (8 nm)	MediaTek Helio G36 (12 nm)
GPU	Adreno 618	PowerVR GE8320
OS	Android 10, upgradable to Android 12, One UI 4.1	Android 13

MEMORY4 fields

Specification	Galaxy M51	Spark 20C
Card slot	microSDXC (dedicated slot)	microSDXC
Internal	128GB	128GB, 256GB
RAM	6GB RAM, 8GB RAM	4GB RAM, 8GB RAM
Storage/RAM variants	128GB; 6GB RAM, 8GB RAM	128GB, 256GB; 4GB RAM, 8GB RAM

MAIN CAMERA3 fields

Specification	Galaxy M51	Spark 20C
Features	LED flash, panorama, HDR	Dual-LED flash, HDR
MAIN CAMERA	64 MP, f/1.8, 26mm (wide), 1/1.73", 0.8µm, PDAF 12 MP, f/2.2, 123˚ (ultrawide) 5 MP, f/2.4, (macro) 5 MP, f/2.4, (depth	50 MP, (wide), 1/2.8", PDAF 0.08 MP (auxiliary lens)
Video	4K@30fps, 1080p@30fps	1080p@30fps

SELFIE CAMERA3 fields

Specification	Galaxy M51	Spark 20C
Features	HDR	Dual-LED flash
Selfie camera	32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µm	8 MP
Video	4K@30fps, 1080p@30fps	Yes

SOUND2 fields

Specification	Galaxy M51	Spark 20C
3.5mm jack	Yes	Yes
Loudspeaker	Yes	Yes, with stereo speakers

COMMUNICATION6 fields

Specification	Galaxy M51	Spark 20C
Bluetooth	5.0, A2DP, LE	Yes
NFC	Yes	No
Positioning	GPS, GLONASS, GALILEO, BDS	GPS
Radio	FM radio, RDS	FM radio
USB	USB Type-C 2.0, OTG	USB Type-C, OTG
WLAN	Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct	Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct

FEATURES1 field

Specification	Galaxy M51	Spark 20C
Sensors	Fingerprint (side-mounted), accelerometer, gyro, proximity, compass	Fingerprint (side-mounted), accelerometer, compass

BATTERY3 fields

Specification	Galaxy M51	Spark 20C
Capacity	7000 mAh	5000 mAh
Charging Type	25W wired, 100% in 115 min	18W wired
Type	Li-Po 7000 mAh	5000 mAh

ADDITIONAL INFORMATION4 fields

Specification	Galaxy M51	Spark 20C
Colors	Celestial Black, Electric Blue, White	Mystery White, Alpenglow Gold, Magic Skin, Gravity Black
Launch Price (USD)	$80.00 (reference only — see Price in Nigeria above for the actual retail price)	$185.00 (reference only — see Price in Nigeria above for the actual retail price)
Models	SM-M515F, SM-M515F/DSN	BG7n, BG7
Price in Nigeria	₦119,568 (Stored estimate)	₦120,000 (Seller price)

SECURITY1 field

Specification	Galaxy M51	Spark 20C
Security	Biometric security: Fingerprint (side-mounted).	Biometric security: Fingerprint (side-mounted).