Amoi E850 vs Oppo A31

Compare recorded specifications, size and practical differences.

Amoi E850

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Oppo A31

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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.

WeightE850: 72 g lighterE850: 108 g · A31: 180 g
WidthE850: 21.5 mm narrowerE850: 54 mm · A31: 75.5 mm
Screen diagonalE850: 4.1 in smaller diagonalE850: 2.4 in · A31: 6.5 in
Rear camera layoutSingle / TripleE850: Single · A31: Triple
DepthA31: 11.7 mm thinnerA31: 8.3 mm · E850: 20 mm
HeightE850: 61.9 mm shorterE850: 102 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. E850
Height
102 mm
Width
54 mm
Depth
20 mm

Weight
108 g
2. A31
Height
163.9 mm
Width
75.5 mm
Depth
8.3 mm

Weight
180 g

Specifications

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Everyday essentials

Everyday essentials
Specification	E850	A31
Dimensions (HxWxD)	102 Х 54 Х 20 mm	163.9 Х 75.5 Х 8.3 mm
Weight	108 g	180 g
Technology	TFT	IPS LCD
Screen size	2.4" inch	6.5" inch
Screen resolution	204 x 320 px	720 x 1600 px
Internal memoryRecorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.	64 MB RAM 128 MB ROM	128GB 4GB RAM
Memory card support	microSD (dedicated slot)	microSDXC (dedicated slot)
BatteryCapacity is not battery life. No endurance test is implied.	1100 mAh Removable Li-Ion	4230 mAh Non-removable Li-Po
Operating system OS	Microsoft Windows Mobile 5.0 for PocketPC Phone Edition	Android 9.0 (Pie); ColorOS 6.1
Chipset	Unknown	Mediatek MT6765V/CB Helio P35 (12nm)
NFC	Super AMOLED	Unknown
Headphone jack	panorama	Yes

Display

Display
Specification	E850	A31
Touchscreen	resistive touchscreen	capacitive touchscreen
Display colors	Super AMOLED	16M
Screen area	16.8 cm2	102.0 cm2
Screen format	16:9 (height:width)	20:9 (height:width)
Screen to body ratio	130.6 g	82.4%
PPI /points per inch/	0 PPI	270 PPI

Camera and Video

Camera and Video
Specification	E850	A31
Rear camera, main	2 MP Single	12 MP Triple
Camera specs	2 MP	12 MP f/1.8 (wide) PDAF -2 MP f/2.4 27mm (macro) 1/5.0'' 1.75µm -2 MP (depth)
Functions	Dual-LED flash	HDR
Video	Yes	1080p@30fps
Front camera, selfie	0 MP,	8 MP Single
Specifications	Super AMOLED	8 MP f/2.0

Performance

Performance
Specification	E850	A31
Processor CPU	Intel XScale PXA 272 312 MHz	Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)
Graphics processor GPU	Unknown	PowerVR GE8320
Antutu 8 scoreLegacy recorded score. Test conditions are unspecified; no new testing is implied.	Unknown	105221

General specs

General specs
Specification	E850	A31
Release date	2006 Q2	2020 February 13
Colors	Black	Fantasy White Mystery Black
Historical recorded priceLegacy catalogue value; date unknown. Not a current offer.	Unknown	180 EUR
Battery life	Stand by time- Up to 150 h Talking time- Up to 4 h	Unknown
Body build	Unknown	Glass front plastic back plastic frame

Communication and Connectivity

Communication and Connectivity
Specification	E850	A31
SIM card	Single SIM (Mini-SIM)Dual SIM (Mini-SIM/Micro-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 900 / 2100-4G - LTE	Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 2100 -4G - LTE (unspecified)
Speed	Super AMOLED	HSPA 42.2/5.76 Mbps LTE-A
GPRS	Class 10	Yes
Edge	panorama	Yes
Wi-Fi	panorama	Wi-Fi 802.11 a/b/g/n/ac dual-band Wi-Fi Direct hotspot
GPS	panorama	Yes with A-GPS BDS
USB	HSPA 21.1/5.76 Mbps	microUSB 2.0 USB On-The-Go
Bluetooth	Quad-core 1.25 GHz Cortex-A53	5.0 A2DP LE

Music and Audio

Music and Audio
Specification	E850	A31
Radio	panorama	FM radio
Others	Handwriting recognition	480 nits typ. brightness

Other features

Other features
Specification	E850	A31
Dop	Super AMOLED Infrared port - Pocket Office -Media player -PC Sync -Voice memo -Organizer -World Time	Sensors Fingerprint (rear-mounted) accelerometer proximity compass