Oppo A31 vs T-Mobile Comet

Compare recorded specifications, size and practical differences.

Oppo A31

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T-Mobile Comet

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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.

WeightComet: 77.9 g lighterComet: 102.1 g · A31: 180 g
WidthComet: 19.6 mm narrowerComet: 55.9 mm · A31: 75.5 mm
Screen diagonalComet: 3.7 in smaller diagonalComet: 2.8 in · A31: 6.5 in
Rear camera layoutTriple / SingleA31: Triple · Comet: Single
DepthA31: 4.4 mm thinnerA31: 8.3 mm · Comet: 12.7 mm
HeightComet: 59.8 mm shorterComet: 104.1 mm · A31: 163.9 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.

Front

Side

1. A31
Height
163.9 mm
Width
75.5 mm
Depth
8.3 mm

Weight
180 g
2. Comet
Height
104.1 mm
Width
55.9 mm
Depth
12.7 mm

Weight
102.1 g

Specifications

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Everyday essentials

Everyday essentials
Specification	A31	Comet
Dimensions (HxWxD)	163.9 Х 75.5 Х 8.3 mm	104.1 Х 55.9 Х 12.7 mm
Weight	180 g	102.1 g
Technology	IPS LCD	TFT
Screen size	6.5" inch	2.8" inch
Screen resolution	720 x 1600 px	240 x 320 px
Internal memoryRecorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.	128GB 4GB RAM	Unknown
Memory card support	microSDXC (dedicated slot)	microSD up to 32 GB (dedicated slot) 2 GB included
BatteryCapacity is not battery life. No endurance test is implied.	4230 mAh Non-removable Li-Po	1200 mAh Removable Li-Ion
Operating system OS	Android 9.0 (Pie); ColorOS 6.1	Android 2.2 (Froyo)
Chipset	Mediatek MT6765V/CB Helio P35 (12nm)	Qualcomm MSM7225 Snapdragon S1
Headphone jack	Yes	Yes

Display

Display
Specification	A31	Comet
Touchscreen	capacitive touchscreen	capacitive touchscreen
Display colors	16M	256K
Screen area	102.0 cm2	24.3 cm2
Screen format	20:9 (height:width)	4:3 (height:width)
Screen to body ratio	82.4%	41.7%
PPI /points per inch/	270 PPI	143 PPI

Camera and Video

Camera and Video
Specification	A31	Comet
Rear camera, main	12 MP Triple	3.15 MP Single
Camera specs	12 MP f/1.8 (wide) PDAF -2 MP f/2.4 27mm (macro) 1/5.0'' 1.75µm -2 MP (depth)	3.15 MP
Functions	HDR	Unknown
Video	1080p@30fps	CIF
Front camera, selfie	8 MP Single	0 MP,
Specifications	8 MP f/2.0	Unknown

Performance

Performance
Specification	A31	Comet
Processor CPU	Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)	528 MHz ARM 11
Graphics processor GPU	PowerVR GE8320	No
Antutu 8 scoreLegacy recorded score. Test conditions are unspecified; no new testing is implied.	105221	Unknown

General specs

General specs
Specification	A31	Comet
Release date	2020 February 13	2010 November
Colors	Fantasy White Mystery Black	Black
Historical recorded priceLegacy catalogue value; date unknown. Not a current offer.	180 EUR	150 EUR
Battery life	Unknown	Stand by time- Up to 288 h Talking time- Up to 9 h
Body build	Glass front plastic back plastic frame	Unknown

Communication and Connectivity

Communication and Connectivity
Specification	A31	Comet
SIM card	Dual SIM (Nano-SIM dual stand-by)	Mini-SIM
Network	Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 2100 -4G - LTE (unspecified)	Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
Speed	HSPA 42.2/5.76 Mbps LTE-A	HSPA 7.2/0.384 Mbps
GPRS	Yes	Class 10
Edge	Yes	Class 10
Wi-Fi	Wi-Fi 802.11 a/b/g/n/ac dual-band Wi-Fi Direct hotspot	Wi-Fi 802.11 b/g/n hotspot
GPS	Yes with A-GPS BDS	Yes with A-GPS
USB	microUSB 2.0 USB On-The-Go	microUSB 2.0
Bluetooth	5.0 A2DP LE	2.0 A2DP

Music and Audio

Music and Audio
Specification	A31	Comet
Radio	FM radio	FM radio
Others	480 nits typ. brightness	Unknown

Other features

Other features
Specification	A31	Comet
Dop	Sensors Fingerprint (rear-mounted) accelerometer proximity compass	Sensors Accelerometer MP3/WMA/eAAC+ player -MP4/H.264 player -Organizer -Photo viewer/editor -Voice memo/dial/commands -Predictive text input (Swype) For T-Mobile