Lenovo K8 Plus vs Samsung Galaxy A31: 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

K8 Plus:

LCD

Galaxy A31:

OLED
Weight

K8 Plus: 20 g lighter

K8 Plus:

165 g

Galaxy A31:

185 g
Screen diagonal

K8 Plus: 1.2 in smaller diagonal

K8 Plus:

5.2 in

Galaxy A31:

6.4 in
Rear camera layout

K8 Plus:

Dual

Galaxy A31:

Quad
Height

K8 Plus: 11.4 mm shorter

K8 Plus:

147.9 mm

Galaxy A31:

159.3 mm
Release year

K8 Plus:

2017

Galaxy A31:

2020

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. K8 Plus

Height:

147.9 mm
Width:

73.7 mm
Depth:

9 mm
2. Galaxy A31

Height:

159.3 mm +11.4 mm versus K8 Plus
Width:

73.1 mm
Depth:

8.6 mm

Weight

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

1. K8 Plus

165 g
2. Galaxy A31

185 g

+20 g versus K8 Plus

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. K8 Plus

Screen diagonal:

5.2 in

Aspect ratio (height:width):

16:9

Approximate rectangular screen area:

74.5 cm²
2. Galaxy A31

Screen diagonal:

6.4 in

Aspect ratio (height:width):

20:9

Approximate rectangular screen area:

98.9 cm²

Galaxy A31 has approximately 32.7% more rectangular screen area than K8 Plus.

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 K8 Plus, Galaxy A31, compared at the same storage capacity.
Storage	K8 Plus	Galaxy A31
64 GB	Unknown	4 GB RAM
128 GB	Unknown	4 / 6 GB RAM Alternative RAM configurations

K8 Plus: Original memory entry

32 GB · 3/4 GB RAM

Practical features

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

1. K8 Plus

NFC:: Unknown
Headphone jack:: Yes
Memory card support:: See details microSD · up to 128 GB (dedicated slot)

2. Galaxy A31

NFC:: See details Yes (market/region dependent)
Headphone jack:: Yes
Memory card support:: See details microSDXC (dedicated slot)

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. K8 Plus

4000 mAh
2. Galaxy A31

5000 mAh

+1000 mAh versus K8 Plus

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. K8 Plus2. Galaxy A31

Everyday essentials

Everyday essentials — specifications for K8 Plus, Galaxy A31.
Specification	K8 Plus	Galaxy A31
Dimensions (HxWxD)	147.9 Х 73.7 Х 9 mm	159.3 Х 73.1 Х 8.6 mm
Weight	165 g	185 g
Technology	IPS LCD	Super AMOLED
Screen size	5.2" inch	6.4" inch
Screen resolution	1080 x 1920 px	1080 x 2400 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.	32 GB 3/4 GB RAM	64GB 4GB RAM 128GB 4GB RAM 128GB 6GB RAM
Memory card support	microSD up to 128 GB (dedicated slot)	microSDXC (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.	4000 mAh Non-removable Li-Po	5000 mAh Non-removable Li-Po
Operating system OS	Android 7.1.1 (Nougat) upgradable to Android 8.0 (Oreo)	Android 10.0; One UI 2.0
Chipset	Mediatek MT6757 Helio P25 (16 nm)	Unknown
NFC	Unknown	Yes (market/region dependent)
Headphone jack	Yes	Yes

Display

Display — specifications for K8 Plus, Galaxy A31.
Specification	K8 Plus	Galaxy A31
Touchscreen	capacitive touchscreen	capacitive touchscreen
Display colors	16M	16M
Screen area	74.5 cm2	98.9 cm2
Screen format	16:9 (height:width)	20:9 (height:width)
Screen to body ratio	68.4%	84.9%
PPI /points per inch/	424 PPI	411 PPI
Screen protection	Corning Gorilla Glass 3	Unknown

Camera and Video

Camera and Video — specifications for K8 Plus, Galaxy A31.
Specification	K8 Plus	Galaxy A31
Rear camera, main	13 MP Dual	48 MP Quad
Camera specs	13 MP f/2.0 PDAF -5 MP depth sensor	48 MP f/2.0 26mm (wide) 1/2.0" 0.8µm PDAF -8 MP f/2.2 13mm (ultrawide) 1/4.0" 1.12µm -5 MP f/2.4 (macro) -5 MP (depth)
Functions	Dual-LED dual-tone flash HDR panorama	LED flash panorama HDR
Video	1080p@30fps	1080p@30fps
Front camera, selfie	8 MP Single	20 MP Single
Specifications	8 MP	20 MP f/2.2 (wide)

Performance

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

Performance — specifications for K8 Plus, Galaxy A31.
Specification	K8 Plus	Galaxy A31
Processor CPU	Octa-core (4x2.5 GHz Cortex-A53 & 4x1.4 GHz Cortex-A53)	Octa-core (2x2.0 GHz & 6x1.7 GHz)
Graphics processor GPU	Mali-T880MP2	Unknown
Antutu 7 score *	65892	Unknown
GeekBench 4 Single Core *	901	Unknown
GeekBench 4 Multi-Core *	3435	Unknown
GeekBench 4 RenderScript *	2549	Unknown
GeekBench 5 Single Core *	174	Unknown
GeekBench 5 Multi-Core *	788	Unknown

General specs

General specs — specifications for K8 Plus, Galaxy A31.
Specification	K8 Plus	Galaxy A31
Release date	2017 September	2020 March 24
Colors	Fine Gold Venom Black	Prism Crush Black Prism Crush Blue Prism Crush Red Prism Crush White
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.	200 EUR	Unknown
Battery life	Stand by time- Up to 401 h (3G) Talking time- Up to 26 h (3G)	Unknown
Body build	aluminum body	Unknown

Communication and Connectivity

Communication and Connectivity — specifications for K8 Plus, Galaxy A31.
Specification	K8 Plus	Galaxy A31
SIM card	Dual SIM (Nano-SIM dual stand-by)	Single SIM (Nano-SIM)Dual 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 / 2100 -4G - LTE band 1(2100) 3(1800) 5(850) 7(2600) 8(900) 40(2300)	Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE (unspecified)
Speed	HSPA 42.2/5.76 Mbps LTE Cat4 150/50 Mbps	HSPA LTE-A
GPRS	Yes	Yes
Edge	Yes	Yes
Wi-Fi	Wi-Fi 802.11 b/g/n Wi-Fi Direct hotspot	Wi-Fi 802.11 a/b/g/n/ac dual-band Wi-Fi Direct hotspot
GPS	Yes with A-GPS	Yes with A-GPS GLONASS GALILEO BDS
USB	microUSB 2.0 USB On-The-Go	2.0 Type-C 1.0 reversible connector USB On-The-Go
Bluetooth	4.2 A2DP LE	5.0 A2DP LE
Harmful irradiation	Unknown	SAR EU - 0.49 W/kg (head) 1.68 W/kg (body)

Music and Audio

Music and Audio — specifications for K8 Plus, Galaxy A31.
Specification	K8 Plus	Galaxy A31
Radio	FM radio	Unknown
Others	Active noise cancellation with dedicated mic -Dolby Atmos sound enhancement	Unknown

Other features

Other features — specifications for K8 Plus, Galaxy A31.
Specification	K8 Plus	Galaxy A31
Dop	Sensors Fingerprint (rear-mounted) accelerometer gyro proximity compass	Sensors Fingerprint (under display optical) accelerometer gyro proximity compass - Fast charging 15W

Lenovo K8 Plus vs Samsung Galaxy A31

Lenovo K8 Plus

Samsung Galaxy A31

Key differences