Archos Diamond Omega vs Oppo 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.

Weight

Diamond Omega: 10 g lighter

Diamond Omega:

170 g

A31:

180 g
Width

Diamond Omega: 2.8 mm narrower

Diamond Omega:

72.7 mm

A31:

75.5 mm
Screen diagonal

Diamond Omega: 0.77 in smaller diagonal

Diamond Omega:

5.73 in

A31:

6.5 in
Height

Diamond Omega: 16.4 mm shorter

Diamond Omega:

147.5 mm

A31:

163.9 mm
Release year

Diamond Omega:

2017

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. Diamond Omega

Height:

147.5 mm
Width:

72.7 mm
Depth:

8.5 mm
2. A31

Height:

163.9 mm +16.4 mm versus Diamond Omega
Width:

75.5 mm +2.8 mm versus Diamond Omega
Depth:

8.3 mm

Weight

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

1. Diamond Omega

170 g
2. A31

180 g

+10 g versus Diamond Omega

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. Diamond Omega

Screen diagonal:

5.73 in

Aspect ratio (height:width):

17:9

Approximate rectangular screen area:

87.6 cm²
2. A31

Screen diagonal:

6.5 in

Aspect ratio (height:width):

20:9

Approximate rectangular screen area:

102 cm²

A31 has approximately 16.5% more rectangular screen area than Diamond Omega.

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 Diamond Omega, A31, compared at the same storage capacity.
Storage	Diamond Omega	A31
128 GB	Unknown	4 GB RAM

Diamond Omega: Original memory entry

up to 128 GB (uses shared SIM slot) · 8 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. Diamond Omega

NFC:: Yes
Headphone jack:: See details panorama
Memory card support:: See details panorama

2. A31

NFC:: Unknown
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. Diamond Omega

3100 mAh
2. A31

4230 mAh

+1130 mAh versus Diamond Omega

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. Diamond Omega2. A31

Everyday essentials

Everyday essentials — specifications for Diamond Omega, A31.
Specification	Diamond Omega	A31
Dimensions (HxWxD)	147.5 Х 72.7 Х 8.5 mm	163.9 Х 75.5 Х 8.3 mm
Weight	170 g	180 g
Technology	LTPS IPS LCD	IPS LCD
Screen size	5.73" inch	6.5" inch
Screen resolution	1080 x 2040 px	720 x 1600 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.	up to 128 GB (uses shared SIM slot) 8 GB RAM	128GB 4GB RAM
Memory card support	panorama	microSDXC (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.	3100 mAh Non-removable Li-Po	4230 mAh Non-removable Li-Po
Operating system OS	Android 7.1 (Nougat); nubia UI 5	Android 9.0 (Pie); ColorOS 6.1
Chipset	Qualcomm MSM8998 Snapdragon 835 (10 nm)	Mediatek MT6765V/CB Helio P35 (12nm)
NFC	Yes	Unknown
Headphone jack	panorama	Yes

Display

Display — specifications for Diamond Omega, A31.
Specification	Diamond Omega	A31
Touchscreen	capacitive touchscreen	capacitive touchscreen
Display colors	16M	16M
Screen area	87.6 cm2	102.0 cm2
Screen format	17:9 (height:width)	20:9 (height:width)
Screen to body ratio	81.7%	82.4%
PPI /points per inch/	403 PPI	270 PPI
Screen protection	Corning Gorilla Glass (unspecified version)	Unknown

Camera and Video

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

Camera and Video — specifications for Diamond Omega, A31.
Specification	Diamond Omega	A31
Rear camera, main	12 MP Dual-LED flash	12 MP Triple
Camera specs	12 MP f/1.8 1/2.55'' 1.4µm dual pixel PDAF -23 MP f/2.0 PDAF & laser AF 2x lossless zoom	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 dual-tone flash HDR panorama	HDR
Video	1080p@30fps	1080p@30fps
Front camera, selfie	5 MP Single	8 MP Single
Specifications	5 MP f/2.2 5 MP	8 MP f/2.0
DxOMark Main Score *	1080 x 1920 px	Unknown
DxOMark Photo *	36382	Unknown
DxOMark Video *	52475	Unknown

Performance

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

Performance — specifications for Diamond Omega, A31.
Specification	Diamond Omega	A31
Processor CPU	Octa-core (4x2.45 GHz Kryo & 4x1.9 GHz Kryo)	Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)
Graphics processor GPU	Adreno 540	PowerVR GE8320
Antutu 7 score *	170123	Unknown
Antutu 8 score *	Unknown	105221

General specs

General specs — specifications for Diamond Omega, A31.
Specification	Diamond Omega	A31
Release date	2017 October	2020 February 13
Colors	Dark Blue	Fantasy White Mystery Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.	300 EUR	180 EUR
Body build	Front/back glass (Gorilla Glass) metal frame	Glass front plastic back plastic frame

Communication and Connectivity

Communication and Connectivity — specifications for Diamond Omega, A31.
Specification	Diamond Omega	A31
SIM card	Dual SIM (Nano-SIM dual stand-by)	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 / 1900 / 2100-4G - LTE band 1(2100) 3(1800) 7(2600) 8(900) 20(800)	Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 2100 -4G - LTE (unspecified)
Speed	HSPA 42.2/5.76 Mbps LTE-A (3CA) Cat9 450/50 Mbps	HSPA 42.2/5.76 Mbps LTE-A
GPRS	Yes	Yes
Edge	Yes	Yes
Wi-Fi	Wi-Fi 802.11 b/g/n/ac dual-band Wi-Fi Direct DLNA hotspot	Wi-Fi 802.11 a/b/g/n/ac dual-band Wi-Fi Direct hotspot
GPS	Yes with A-GPS GLONASS BDS	Yes with A-GPS BDS
USB	Type-C 1.0 reversible connector USB On-The-Go	microUSB 2.0 USB On-The-Go
Bluetooth	64.1% A2DP Super AMOLED	5.0 A2DP LE

Music and Audio

Music and Audio — specifications for Diamond Omega, A31.
Specification	Diamond Omega	A31
Radio	panorama	FM radio
Others	DTS HD sound -32-bit/384kHz audio -Active noise cancellation with dedicated mic	480 nits typ. brightness

Other features

Other features — specifications for Diamond Omega, A31.
Specification	Diamond Omega	A31
Dop	Sensors Fingerprint (rear-mounted) Sensors Accelerometer gyro proximity compass - Fast battery charging (Quick Charge 3.0) - For Europe	Sensors Fingerprint (rear-mounted) accelerometer proximity compass

Archos Diamond Omega vs Oppo A31