Nokia C7 vs Oppo A31

Compare recorded specifications, size and practical differences.

Nokia C7

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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.

Display technologyOLED versus LCDC7: OLED · A31: LCD
WeightC7: 50 g lighterC7: 130 g · A31: 180 g
WidthC7: 18.7 mm narrowerC7: 56.8 mm · A31: 75.5 mm
Screen diagonalC7: 3 in smaller diagonalC7: 3.5 in · A31: 6.5 in
Rear camera layoutSingle / TripleC7: Single · A31: Triple
DepthA31: 2.2 mm thinnerA31: 8.3 mm · C7: 10.5 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. C7
Height
117.3 mm
Width
56.8 mm
Depth
10.5 mm

Weight
130 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	C7	A31
Dimensions (HxWxD)	117.3 Х 56.8 Х 10.5 mm	163.9 Х 75.5 Х 8.3 mm
Weight	130 g	180 g
Technology	AMOLED	IPS LCD
Screen size	3.5" inch	6.5" inch
Screen resolution	360 x 640 px	720 x 1600 px
Internal memoryRecorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.	8 GB 256 MB RAM 1 GB ROM	128GB 4GB RAM
Memory card support	microSD up to 32 GB (dedicated slot)	microSDXC (dedicated slot)
BatteryCapacity is not battery life. No endurance test is implied.	1200 mAh Removable Li-Ion	4230 mAh Non-removable Li-Po
Operating system OS	Symbian^3 upgradable to Nokia Belle OS	Android 9.0 (Pie); ColorOS 6.1
Chipset	Unknown	Mediatek MT6765V/CB Helio P35 (12nm)
NFC	Via software update	Unknown
Headphone jack	Yes	Yes

Display

Display
Specification	C7	A31
Touchscreen	capacitive touchscreen	capacitive touchscreen
Display colors	16M	16M
Screen area	33.8 cm2	102.0 cm2
Screen format	16:9 (height:width)	20:9 (height:width)
Screen to body ratio	50.7%	82.4%
PPI /points per inch/	210 PPI	270 PPI
Screen protection	Corning Gorilla Glass	Unknown

Camera and Video

Camera and Video
Specification	C7	A31
Rear camera, main	8 MP Single	12 MP Triple
Camera specs	8 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	720p@25fps 720p@30fps (via SW update)	1080p@30fps
Front camera, selfie	0.3 MP Single	8 MP Single
Specifications	VGA	8 MP f/2.0

Performance

Performance
Specification	C7	A31
Processor CPU	680 MHz ARM 11	Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)
Graphics processor GPU	Broadcom BCM2727	PowerVR GE8320
Antutu 8 scoreLegacy recorded score. Test conditions are unspecified; no new testing is implied.	Unknown	105221

General specs

General specs
Specification	C7	A31
Release date	2010 September	2020 February 13
Colors	Charcoal Black Frosty metal Mahogany brown	Fantasy White Mystery Black
Historical recorded priceLegacy catalogue value; date unknown. Not a current offer.	150 EUR	180 EUR
Battery life	Stand by time- Up to 552 h (2G) / Up to 648 h (3G) Talking time- Up to 9 h 30 min (2G) / Up to 5 h (3G) Music play - Up to 54 h	Unknown
Body build	Unknown	Glass front plastic back plastic frame

Communication and Connectivity

Communication and Connectivity
Specification	C7	A31
SIM card	Mini-SIM	Dual SIM (Nano-SIM dual stand-by)
Network	Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900	Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 2100 -4G - LTE (unspecified)
Speed	HSPA 10.2/2 Mbps	HSPA 42.2/5.76 Mbps LTE-A
GPRS	Class 32	Yes
Edge	Class 32	Yes
Wi-Fi	Wi-Fi 802.11 b/g/n	Wi-Fi 802.11 a/b/g/n/ac dual-band Wi-Fi Direct hotspot
GPS	Yes with A-GPS; Ovi Maps 3.0	Yes with A-GPS BDS
USB	microUSB 2.0 USB Host	microUSB 2.0 USB On-The-Go
Bluetooth	3.0 A2DP	5.0 A2DP LE
Harmful irradiation	SAR - 1.03 W/kg (head) 0.83 W/kg (body) SAR EU - 0.73 W/kg (head)	Unknown

Music and Audio

Music and Audio
Specification	C7	A31
Radio	Stereo FM radio RDS; FM trans	FM radio
Others	Active noise cancellation with dedicated mic	480 nits typ. brightness

Other features

Other features
Specification	C7	A31
Dop	Sensors Accelerometer proximity compass - Web TV -TV-out -MP3/WMA/WAV/eAAC+ player -DivX/XviD/MP4/H.264/WMV player -Quickoffice document viewer (Word Excel PowerPoint PDF) -Adobe Reader -Voice memo/dial/command -Predictive text input	Sensors Fingerprint (rear-mounted) accelerometer proximity compass