Karbonn Smart A12 Star vs Oppo Reno Ace: 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.

Display technology

OLED versus LCD

Smart A12 Star:

LCD

Reno Ace:

OLED
Weight

Smart A12 Star: 70 g lighter

Smart A12 Star:

130 g

Reno Ace:

200 g
Width

Smart A12 Star: 11.5 mm narrower

Smart A12 Star:

64.2 mm

Reno Ace:

75.7 mm
Screen diagonal

Smart A12 Star: 2.5 in smaller diagonal

Smart A12 Star:

4 in

Reno Ace:

6.5 in
Rear camera layout

Smart A12 Star:

Single

Reno Ace:

Quad
Depth

Reno Ace: 1.4 mm thinner

Smart A12 Star:

10.1 mm

Reno Ace:

8.7 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.

1. Smart A12 Star

Height:

124.2 mm
Width:

64.2 mm
Depth:

10.1 mm +1.4 mm versus Reno Ace
2. Reno Ace

Height:

161 mm +36.8 mm versus Smart A12 Star
Width:

75.7 mm +11.5 mm versus Smart A12 Star
Depth:

8.7 mm

Weight

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

1. Smart A12 Star

130 g
2. Reno Ace

200 g

+70 g versus Smart A12 Star

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. Smart A12 Star

Screen diagonal:

4 in

Aspect ratio (height:width):

5:3

Approximate rectangular screen area:

45.5 cm²
2. Reno Ace

Screen diagonal:

6.5 in

Aspect ratio (height:width):

20:9

Approximate rectangular screen area:

102 cm²

Reno Ace has approximately 124% more rectangular screen area than Smart A12 Star.

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 Smart A12 Star, Reno Ace, compared at the same storage capacity.
Storage	Smart A12 Star	Reno Ace
128 GB	Unknown	8 GB RAM
256 GB	Unknown	8 / 12 GB RAM Alternative RAM configurations

Smart A12 Star: 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. Smart A12 Star

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

2. Reno Ace

NFC:: Yes
Headphone jack:: Yes
Memory card support:: No

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. Smart A12 Star

1400 mAh
2. Reno Ace

4000 mAh

+2600 mAh versus Smart A12 Star

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. Smart A12 Star2. Reno Ace

Everyday essentials

Everyday essentials — specifications for Smart A12 Star, Reno Ace.
Specification	Smart A12 Star	Reno Ace
Dimensions (HxWxD)	124.2 Х 64.2 Х 10.1 mm	161 Х 75.7 Х 8.7 mm
Weight	130 g	200 g
Technology	IPS LCD	AMOLED
Screen size	4" inch	6.5" inch
Screen resolution	480 x 800 px	1080 x 2400 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.	4 GB 512 MB RAM	128GB 8GB RAM 256GB 8GB RAM 256GB 12GB RAM
Memory card support	microSD up to 32 GB	No
Battery Capacity is not battery life. No endurance test is implied.	1400 mAh Li-Ion	4000 mAh Non-removable Li-Po
Operating system OS	Android 4.4.2 (KitKat)	Android 9.0 (Pie) planned upgrade to Android 10.0; ColorOS 6.1
Chipset	Unknown	Qualcomm SM8150 Snapdragon 855+ (7 nm)
NFC	Unknown	Yes
Headphone jack	Yes	Yes

Display

Display — specifications for Smart A12 Star, Reno Ace.
Specification	Smart A12 Star	Reno Ace
Touchscreen	capacitive touchscreen	capacitive touch
Display colors	16M	16M
Screen area	45.5 cm2	102.0 cm2
Screen format	5:3 (height:width)	20:9 (height:width)
Screen to body ratio	57.1%	83.7%
PPI /points per inch/	233 PPI	405 PPI
Screen protection	Unknown	Corning Gorilla Glass 6

Camera and Video

Camera and Video — specifications for Smart A12 Star, Reno Ace.
Specification	Smart A12 Star	Reno Ace
Rear camera, main	5 MP Single	48 MP Quad
Camera specs	5 MP	48 MP f/1.7 26mm (wide) 1/2.0" 0.8µm PDAF OIS -13MP f/2.4 (telephoto) 1/3.4" 1.0µm 2x optical zoom -8 MP f/2.2 13mm (ultrawide) 1/3.2" 1.4µm -2 MP B/W 1/5" 1.75µm
Functions	LED flash	HDR
Video	Yes	1080p@30fps
Front camera, selfie	0.3 MP Single	16 MP Single
Specifications	VGA	16 MP f/2.0 26mm (wide) 1/3.1'' 1.0µm

Performance

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

Performance — specifications for Smart A12 Star, Reno Ace.
Specification	Smart A12 Star	Reno Ace
Processor CPU	Dual-core 1.2 GHz	Octa-core (1x2.96 GHz Kryo 485 & 3x2.42 GHz Kryo 485 & 4x1.8 GHz Kryo 485)
Graphics processor GPU	Unknown	Adreno 640 (700 MHz)
Antutu 8 score *	Unknown	465000

General specs

General specs — specifications for Smart A12 Star, Reno Ace.
Specification	Smart A12 Star	Reno Ace
Release date	2014 July	2019 October
Colors	Black	Psychedelic Purple Starry Blue
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.	50 EUR	380 EUR
Battery life	Stand by time- Up to 300 h	Unknown
Body build	Unknown	Front glass (Gorilla Glass 6) Back glass (Gorilla Glass 5) aluminum frame

Communication and Connectivity

Communication and Connectivity — specifications for Smart A12 Star, Reno Ace.
Specification	Smart A12 Star	Reno Ace
SIM card	Dual SIM (Micro-SIM dual stand-by)	Hybrid Dual SIM (Nano-SIM dual stand-by)
Network	Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2	Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100 -4G - LTE (unspecified)
Speed	HSPA	HSPA LTE-A
GPRS	Yes	Yes
Edge	Yes	Yes
Wi-Fi	Wi-Fi 802.11 b/g/n hotspot	Wi-Fi 802.11 a/b/g/n/ac dual-band Wi-Fi Direct hotspot
GPS	Yes with A-GPS	Yes with dual-band A-GPS GLONASS BDS GALILEO
USB	microUSB 2.0	2.0 Type-C 1.0 reversible connector USB On-The-Go
Bluetooth	2.0	5.0 A2DP LE
Harmful irradiation	SAR EU - 0.79 W/kg (head)	Unknown

Music and Audio

Music and Audio — specifications for Smart A12 Star, Reno Ace.
Specification	Smart A12 Star	Reno Ace
Radio	FM radio	FM radio
Others	Unknown	500 nits max brightness -HDR -90 Hz -DCI-P3 100% Active noise cancellation with dedicated mic

Other features

Other features — specifications for Smart A12 Star, Reno Ace.
Specification	Smart A12 Star	Reno Ace
Dop	Sensors Accelerometer proximity	Sensors Fingerprint (under display optical) accelerometer gyro proximity compass - Fast battery charging 65W: 100% in 30 min (SuperVOOC Flash Charge)

Karbonn Smart A12 Star vs Oppo Reno Ace