Micromax Bolt A51 vs OnePlus 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.

Weight

Bolt A51: 62 g lighter

Bolt A51:

118 g

8:

180 g
Width

Bolt A51: 10.4 mm narrower

Bolt A51:

62.5 mm

8:

72.9 mm
Screen diagonal

Bolt A51: 3.05 in smaller diagonal

Bolt A51:

3.5 in

8:

6.55 in
Rear camera layout

Bolt A51:

Single

8:

Triple
Depth

8: 4.8 mm thinner

Bolt A51:

12.8 mm

8:

8 mm
Height

Bolt A51: 41.7 mm shorter

Bolt A51:

118.5 mm

8:

160.2 mm

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. Bolt A51

Height:

118.5 mm
Width:

62.5 mm
Depth:

12.8 mm +4.8 mm versus 8
2. 8

Height:

160.2 mm +41.7 mm versus Bolt A51
Width:

72.9 mm +10.4 mm versus Bolt A51
Depth:

8 mm

Weight

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

1. Bolt A51

118 g
2. 8

180 g

+62 g versus Bolt A51

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. Bolt A51

Screen diagonal:

3.5 in

Aspect ratio (height:width):

3:2

Approximate rectangular screen area:

36.5 cm²
2. 8

Screen diagonal:

6.55 in

Aspect ratio (height:width):

20:9

Approximate rectangular screen area:

103.6 cm²

8 has approximately 184% more rectangular screen area than Bolt A51.

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 Bolt A51, 8, compared at the same storage capacity.
Storage	Bolt A51	8
128 GB	Unknown	8 GB RAM
256 GB	Unknown	12 GB RAM

Bolt A51: Original memory entry

512 MB · 256 MB 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. Bolt A51

NFC:: Unknown
Headphone jack:: Yes
Memory card support:: See details microSD · up to 32 GB (dedicated slot)

2. 8

NFC:: Yes
Headphone jack:: No
Memory card support:: No

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. Bolt A51

1500 mAh
2. 8

4300 mAh

+2800 mAh versus Bolt A51

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. Bolt A512. 8

Everyday essentials

Everyday essentials — specifications for Bolt A51, 8.
Specification	Bolt A51	8
Dimensions (HxWxD)	118.5 Х 62.5 Х 12.8 mm	160.2 Х 72.9 Х 8 mm
Weight	118 g	180 g
Technology	TFT	Fluid AMOLED
Screen size	3.5" inch	6.55" inch
Screen resolution	320 x 480 px	1080 x 2400 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.	512 MB 256 MB RAM	128GB 8GB RAM 256GB 12GB RAM
Memory card support	microSD up to 32 GB (dedicated slot)	No
Battery Capacity is not battery life. No endurance test is implied.	1500 mAh Removable Li-Ion	4300 mAh Non-removable Li-Po
Operating system OS	Android 2.3.7 (Gingerbread)	Android 10.0; OxygenOS 10.0
Chipset	Unknown	Qualcomm SM8250 Snapdragon 865 (7 nm+)
NFC	Unknown	Yes
Headphone jack	Yes	No

Display

Display — specifications for Bolt A51, 8.
Specification	Bolt A51	8
Touchscreen	touchscreen	capacitive touchscreen
Display colors	Unknown	16M
Screen area	36.5 cm2	103.6 cm2
Screen format	3:2 (height:width)	20:9 (height:width)
Screen to body ratio	49.3%	88.7%
PPI /points per inch/	165 PPI	402 PPI
Screen protection	Unknown	Corning Gorilla Glass

Camera and Video

Camera and Video — specifications for Bolt A51, 8.
Specification	Bolt A51	8
Rear camera, main	2 MP Single	48 MP Triple
Camera specs	2 MP	48 MP f/1.8 25mm (wide) 1/2.0'' 0.8µm PDAF OIS -16 MP f/2.2 13mm (ultrawide) PDAF -2 MP f/2.4 (macro)
Functions	LED flash	Auto-HDR
Video	Yes	1080p@30fps gyro-EIS
Front camera, selfie	0.3 MP Single	16 MP Single
Specifications	VGA	16 MP f/2.0 (wide) 1/3'' 1.0µm

Performance

Performance — specifications for Bolt A51, 8.
Specification	Bolt A51	8
Processor CPU	832 MHz	Octa-core (1x2.84 GHz Kryo 585 & 3x2.42 GHz Kryo 585 & 4x1.8 GHz Kryo 585)
Graphics processor GPU	Unknown	Adreno 650

General specs

General specs — specifications for Bolt A51, 8.
Specification	Bolt A51	8
Release date	2013 April	2020 April 14
Colors	Black/Silver	Onyx Black Glacial Green Interstellar Glow Polar Silver
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.	70 EUR	700 EUR
Battery life	Stand by time- Up to 140 h Talking time- Up to 4 h 30 min	Unknown
Body build	Unknown	Glass front (Gorilla Glass) glass back (Gorilla Glass) aluminum frame

Communication and Connectivity

Communication and Connectivity — specifications for Bolt A51, 8.
Specification	Bolt A51	8
SIM card	Dual SIM	Dual SIM (Nano-SIM dual stand-by)
Network	Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2	Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2CDMA 800 / 1900 & TD-SCDMA -3G - HSDPA 800 / 850 / 900 / 1700(AWS) / 1800 / 1900 / 2100 -4G - LTE band 1(2100) 2(1900) 3(1800) 4(1700/2100) 5(850) 7(2600) 8(900) 12(700) 13(700) 17(700) 18(800) 19(800) 20(800) 25(1900) 26(850) 28(700) 32(1500) 34(2000) 38(2600) 39(1900) 40(2300) 41(2500) 42(3500) 46(5200) 66(1700/2100) - EU -5G - 5G band 1(2100) 78(3500); SA/NSA - EU 5G band 2(1900) 66(1700) 71(600); SA/NSA - NA 5G band 78(3500); SA/NSA - IN 5G band 41(2500) 78(3500) 79(4700); SA/NSA - CNmmWave - Verizon exclusive
Speed	HSPA	HSPA 42.2/5.76 Mbps LTE-A (5CA) Cat18 1200/150 Mbps 5G 7.5 Gbps DL
GPRS	Class 12	Yes
Edge	Class 32	Yes
Wi-Fi	Wi-Fi 802.11 b/g/n hotspot	Wi-Fi 802.11 a/b/g/n/ac/ax dual-band Wi-Fi Direct DLNA hotspot
GPS	No	Yes with dual-band A-GPS GLONASS BDS GALILEO SBAS
USB	microUSB	3.1 Type-C 1.0 reversible connector USB On-The-Go
Bluetooth	3.0	5.1 A2DP LE aptX HD

Music and Audio

Music and Audio — specifications for Bolt A51, 8.
Specification	Bolt A51	8
Radio	FM radio	No
Others	Unknown	HDR10+ -90Hz refresh rate

Other features

Other features — specifications for Bolt A51, 8.
Specification	Bolt A51	8
Dop	Sensors Accelerometer	Sensors Fingerprint (under display optical) accelerometer gyro proximity compass - Fast charging 30W 50% in 22 min (advertised) - IP68 dust/water resistant (up to 1.5m for 30 mins)

Micromax Bolt A51 vs OnePlus 8