Celkon A66 vs Oppo A9

Compare recorded specifications, size and practical differences.

Celkon A66

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Oppo A9

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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.

WeightA66: 92 g lighterA66: 98 g · A9: 190 g
WidthA66: 8.9 mm narrowerA66: 67.2 mm · A9: 76.1 mm
Screen diagonalA66: 2.03 in smaller diagonalA66: 4.5 in · A9: 6.53 in
Rear camera layoutSingle / DualA66: Single · A9: Dual
DepthA9: 2.7 mm thinnerA9: 8.3 mm · A66: 11 mm
HeightA66: 26 mm shorterA66: 136 mm · A9: 162 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. A66
Height
136 mm
Width
67.2 mm
Depth
11 mm+2.7 mm versus A9

Weight
98 g
2. A9
Height
162 mm+26 mm versus A66
Width
76.1 mm+8.9 mm versus A66
Depth
8.3 mm

Weight
190 g

Weight

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

1. A6698 g
2. A9190 g

+92 g versus A66

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.

Screen size

1. A66 4.5 in · 16:9 About 55.8 cm² rectangular area
2. A9 6.53 in · 19.5:9 About 104.7 cm² rectangular area

A9 has approximately 87.5% more rectangular screen area than A66.

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 by storage capacity and phone
Storage	A66	A9
128 GB	Unknown	6 GB RAM

A66: Original memory entry

4 GB · 512 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. A66

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

2. A9

NFC: Yes
Headphone jack: Yes
Memory card support: See details microSD · up to 256 GB

Battery capacity

Capacity is not battery life. No endurance test is implied.

Recorded capacity

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

1. A662000 mAh
2. A94020 mAh

+2020 mAh versus A66

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. A662. A9

Everyday essentials

Everyday essentials
Specification	A66	A9
Dimensions (HxWxD)	136 Х 67.2 Х 11 mm	162 Х 76.1 Х 8.3 mm
Weight	98 g	190 g
Technology	TFT	IPS LCD
Screen size	4.5" inch	6.53" inch
Screen resolution	480 x 854 px	1080 x 2340 px
Internal memoryRecorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.	4 GB 512 MB RAM	128 GB 6 GB RAM
Memory card support	microSD up to 32 GB	microSD up to 256 GB
BatteryCapacity is not battery life. No endurance test is implied.	2000 mAh Li-Ion	4020 mAh Non-removable Li-Po
Operating system OS	Android 4.1.2 (Jelly Bean)	Android 9.0 (Pie); ColorOS 6
Chipset	Unknown	Mediatek Helio P70 (12nm)
NFC	Unknown	Yes
Headphone jack	Yes	Yes

Display

Display
Specification	A66	A9
Touchscreen	capacitive touchscreen	capacitive touchscreen
Display colors	Unknown	16M
Screen area	55.8 cm2	104.7 cm2
Screen format	16:9 (height:width)	19.5:9 (height:width)
Screen to body ratio	61.1%	84.9%
PPI /points per inch/	218 PPI	395 PPI

Camera and Video

Camera and Video
Specification	A66	A9
Rear camera, main	3.15 MP Single	16 MP Dual
Camera specs	3.15 MP	16 MP AF -2 MP f/2.4 depth sensor
Functions	LED flash	HDR
Video	Yes	1080p@30fps
Front camera, selfie	0.3 MP Single	16 MP Single
Specifications	VGA	16 MP

Performance

Performance
Specification	A66	A9
Processor CPU	Dual-core 1.2 GHz	Octa-core (4x2.1 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)
Graphics processor GPU	Unknown	Mali-G72 MP3
Antutu 8 scoreLegacy recorded score. Test conditions are unspecified; no new testing is implied.	Unknown	175916

General specs

General specs
Specification	A66	A9
Release date	2014	2019 April
Colors	White Black	Mica Green Ice Jade White Fluorite Purple
Historical recorded priceLegacy catalogue value; date unknown. Not a current offer.	Unknown	250 EUR
Battery life	Stand by time- Up to 160 h Talking time- Up to 5 h	Unknown

Communication and Connectivity

Communication and Connectivity
Specification	A66	A9
SIM card	Dual SIM	Dual SIM (Nano-SIM dual stand-by)
Network	Unknown	Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE
Speed	Unknown	HSPA LTE-A
GPRS	Yes	Yes
Edge	Yes	Yes
Wi-Fi	Wi-Fi 802.11 b/g/n hotspot	Yes
GPS	Yes	Yes with A-GPS GLONASS BDS
USB	microUSB	microUSB 2.0 USB On-The-Go
Bluetooth	2.0	Yes
Harmful irradiation	SAR EU - 0.38 W/kg (head) 0.47 W/kg (body)	Unknown

Music and Audio

Music and Audio
Specification	A66	A9
Radio	FM radio	FM radio
Others	Unknown	Active noise cancellation with dedicated mic

Other features

Other features
Specification	A66	A9
Dop	Sensors Accelerometer proximity	Sensors Fingerprint (rear-mounted) accelerometer proximity compass

Celkon A66 vs Oppo A9

Celkon A66

Oppo A9

Key differences

Physical size

Screen size

Memory variants

Practical features

1. A66

2. A9

Battery capacity

Specifications

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