Samsung Galaxy M21 vs TECNO Phantom 8: specs comparison

Key differences

Calculated from recorded specifications using minimum difference thresholds. These are differences, not an overall ranking. For three phones, numeric highlights compare the two extremes.

Display technology

OLED versus LCD

Galaxy M21:

OLED

Phantom 8:

LCD
Width

Galaxy M21: 4.4 mm narrower

Galaxy M21:

75.1 mm

Phantom 8:

79.5 mm
Screen diagonal

Phantom 8: 0.7 in smaller diagonal

Galaxy M21:

6.4 in

Phantom 8:

5.7 in
Memory variants

At 64 GB storage

Galaxy M21:

4 GB RAM

Phantom 8:

6 GB RAM
Chipset

Galaxy M21:

Exynos 9611 (10nm)

Phantom 8:

Mediatek MT6757T Helio P25 (16 nm)
Rear camera layout

Galaxy M21:

Triple

Phantom 8:

Dual

Physical size

Relative size, not calibrated actual size. Front and side outlines share one scale and a bottom baseline. Generic outlines use recorded body dimensions, excluding camera bumps.

1. Galaxy M21

Height:

159 mm
Width:

75.1 mm
Depth:

8.9 mm +1 mm versus Phantom 8
2. Phantom 8

Height:

160 mm
Width:

79.5 mm +4.4 mm versus Galaxy M21
Depth:

7.9 mm

Weight

Bars start at zero and share a scale within this chart.

1. Galaxy M21

188 g

+3 g versus Phantom 8
2. Phantom 8

185 g

Screen size

Approximate rectangular screens calculated from recorded diagonal and aspect ratio at one relative scale. Rounded corners and cutouts are not subtracted. These are not phone outlines or calibrated actual sizes.

1. Galaxy M21

Screen diagonal:

6.4 in

Aspect ratio (height:width):

19.5:9

Approximate rectangular screen area:

100.5 cm²
2. Phantom 8

Screen diagonal:

5.7 in

Aspect ratio (height:width):

16:9

Approximate rectangular screen area:

89.6 cm²

Galaxy M21 has approximately 12.3% more rectangular screen area than Phantom 8.

Memory variants

Each row compares the same storage capacity. Cells show recorded RAM alternatives, not combined maxima. Not recorded does not mean unavailable in every market.

Recorded RAM for Galaxy M21, Phantom 8, compared at the same storage capacity.
Storage	Galaxy M21	Phantom 8
64 GB Recorded for all phones	4 GB RAM	6 GB RAM
128 GB	6 GB RAM	Not recorded

Practical features

Explicit Yes and No values are shown directly. Qualified or regional records retain their details. Unknown means the record is missing.

1. Galaxy M21

NFC:: Unknown
Headphone jack:: Yes
Memory card support:: See details microSDXC (dedicated slot)

2. Phantom 8

NFC:: Unknown
Headphone jack:: Yes
Memory card support:: See details microSD · up to 256 GB

Battery capacity

Capacity is not battery life. No endurance test is implied.

Recorded battery capacity

Bars start at zero and share a scale within this chart.

1. Galaxy M21

6000 mAh

+2500 mAh versus Phantom 8
2. Phantom 8

3500 mAh

Specifications

Open a section for more detail. On narrow screens, swipe sideways or use Left/Right arrow keys while the table is focused. Unknown means missing data, not No. Recorded zero values are shown as recorded.

1. Galaxy M212. Phantom 8

Everyday essentials

Everyday essentials — specifications for Galaxy M21, Phantom 8.
Specification	Galaxy M21	Phantom 8
Dimensions (HxWxD)	159 Х 75.1 Х 8.9 mm	160 Х 79.5 Х 7.9 mm
Weight	188 g	185 g
Technology	Super AMOLED	IPS LCD
Screen size	6.4" inch	5.7" inch
Screen resolution	1080 x 2340 px	1080 x 1920 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.	64GB 4GB RAM 128GB 6GB RAM	64 GB 6 GB RAM
Memory card support	microSDXC (dedicated slot)	microSD up to 256 GB
Battery Capacity is not battery life. No endurance test is implied.	6000 mAh Non-removable Li-Po	3500 mAh Non-removable Li-Ion
Operating system OS	Android 10.0; One UI 2	Android 7.0 (Nougat)
Chipset	Exynos 9611 (10nm)	Mediatek MT6757T Helio P25 (16 nm)
Headphone jack	Yes	Yes

Display

Display — specifications for Galaxy M21, Phantom 8.
Specification	Galaxy M21	Phantom 8
Touchscreen	capacitive touchscreen	capacitive touchscreen
Display colors	16M	16M
Screen area	100.5 cm2	89.6 cm2
Screen format	19.5:9 (height:width)	16:9 (height:width)
Screen to body ratio	84.2%	70.4%
PPI /points per inch/	403 PPI	386 PPI
Screen protection	Corning Gorilla Glass 3	Corning Gorilla Glass 3

Camera and Video

Camera and Video — specifications for Galaxy M21, Phantom 8.
Specification	Galaxy M21	Phantom 8
Rear camera, main	48 MP Triple	12 MP Dual
Camera specs	48 MP f/2.0 26mm (wide) 1/2.0'' 0.8µm PDAF -8 MP f/2.2 12mm (ultrawide) 1/4.0'' 1.12µm -5 MP (depth)	12 MP f/2.0 PDAF -13 MP f/2.6
Functions	HDR	Dual-LED dual-tone flash HDR
Video	1080p@30fps	1080p@30fps
Front camera, selfie	20 MP Single	20 MP Single
Specifications	20 MP f/2.0 26mm (wide)	20 MP f/2.0

Performance

Scores marked * are historical catalogue entries. Test conditions are unspecified; no new testing is implied.

Performance — specifications for Galaxy M21, Phantom 8.
Specification	Galaxy M21	Phantom 8
Processor CPU	Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53)	Octa-core (4x2.6 GHz Cortex-A53 & 4x1.6 GHz Cortex-A53)
Graphics processor GPU	Mali-G72 MP3	Mali-T880MP2
Antutu 8 score *	182451	65232

General specs

General specs — specifications for Galaxy M21, Phantom 8.
Specification	Galaxy M21	Phantom 8
Release date	2020 March 18	2018 April
Colors	Midnight Blue Raven Black	Galaxy Blue Champagne Gold Phantom Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.	160 EUR	Unknown
Body build	Glass front (Gorilla Glass 3) plastic back plastic frame	Unknown

Communication and Connectivity

Communication and Connectivity — specifications for Galaxy M21, Phantom 8.
Specification	Galaxy M21	Phantom 8
SIM card	Dual SIM (Nano-SIM dual stand-by)	Dual SIM (Micro-SIM/Nano-SIM dual stand-by)
Network	Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100) 3(1800) 5(850) 7(2600) 8(900) 20(800) 38(2600) 40(2300) 41(2500)	Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 1800 / 1900 / 2100 -4G - LTE band 1(2100) 2(1900) 3(1800) 4(1700/2100) 5(850) 7(2600) 8(900) 20(800) 28(700) 38(2600) 40(2300)
Speed	HSPA LTE-A	HSPA 42.2/5.76 Mbps LTE-A (2CA) Cat6 300/50 Mbps
GPRS	Yes	Yes
Edge	Yes	Yes
Wi-Fi	Wi-Fi 802.11 a/b/g/n/ac dual-band Wi-Fi Direct hotspot	Wi-Fi 802.11 a/b/g/n/ac dual-band WiFi Direct hotspot
GPS	Yes with A-GPS GLONASS BDS	Yes with A-GPS
USB	2.0 Type-C 1.0 reversible connector	2.0 Type-C 1.0 reversible connector USB On-The-Go
Bluetooth	5.0 A2DP LE	4.2 A2DP LE
Harmful irradiation	SAR - 0.47 W/kg (head)	Unknown

Music and Audio

Music and Audio — specifications for Galaxy M21, Phantom 8.
Specification	Galaxy M21	Phantom 8
Radio	FM radio RDS recording	FM radio
Others	420 nits max brightness	Unknown

Other features

Other features — specifications for Galaxy M21, Phantom 8.
Specification	Galaxy M21	Phantom 8
Dop	Sensors Fingerprint (rear-mounted) accelerometer gyro proximity compass - Fast charging 15W	Sensors Fingerprint (rear-mounted) accelerometer gyro proximity compass - Fast battery charging

Samsung Galaxy M21 vs TECNO Phantom 8