Karbonn A4 vs OnePlus 7T

Compare recorded specifications, size and practical differences.

Karbonn A4

Replace A4

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OnePlus 7T

Replace 7T

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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.

WeightA4: 115 g lighterA4: 75 g · 7T: 190 g
WidthA4: 8.4 mm narrowerA4: 66 mm · 7T: 74.4 mm
Screen diagonalA4: 2.55 in smaller diagonalA4: 4 in · 7T: 6.55 in
Rear camera layoutSingle / TripleA4: Single · 7T: Triple
Depth7T: 1.4 mm thinner7T: 8.1 mm · A4: 9.5 mm
HeightA4: 36.1 mm shorterA4: 124.8 mm · 7T: 160.9 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. A4
Height
124.8 mm
Width
66 mm
Depth
9.5 mm

Weight
75 g
2. 7T
Height
160.9 mm
Width
74.4 mm
Depth
8.1 mm

Weight
190 g

Specifications

Open a section for more detail. Scroll inside a table to keep phone names visible; on narrow screens, swipe sideways or use the arrow keys while the table is focused. Unknown means missing data, not No. Recorded zero values are shown as recorded.

Everyday essentials

Everyday essentials
Specification	A4	7T
Dimensions (HxWxD)	124.8 Х 66 Х 9.5 mm	160.9 Х 74.4 Х 8.1 mm
Weight	75 g	190 g
Technology	TFT	Fluid AMOLED
Screen size	4" inch	6.55" inch
Screen resolution	320 x 480 px	1080 x 2400 px
Internal memoryRecorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.	256 MB 512 MB	128GB 8GB RAM 256GB 8GB RAM UFS3.0
Memory card support	microSD up to 32 GB (dedicated slot)	No
BatteryCapacity is not battery life. No endurance test is implied.	1400 mAh Li-Ion	3800 mAh Non-removable Li-Po
Operating system OS	Android 2.3.6 (Gingerbread)	Android 10.0
Chipset	Unknown	Qualcomm SDM855 Snapdragon 855+ (7 nm)
NFC	Unknown	Yes
Headphone jack	Yes	No

Display

Display
Specification	A4	7T
Touchscreen	capacitive touchscreen	capacitive touchscreen
Display colors	256K	16M
Screen area	47.6 cm2	103.6 cm2
Screen format	3:2 (height:width)	20:9 (height:width)
Screen to body ratio	57.8%	86.5%
PPI /points per inch/	144 PPI	402 PPI
Screen protection	Unknown	Corning Gorilla Glass

Camera and Video

Camera and Video
Specification	A4	7T
Rear camera, main	3.15 MP Single	48 MP Triple
Camera specs	3.15 MP	48 MP f/1.6 26mm (wide) 1/2'' 0.8µm PDAF OIS -12 MP f/2.2 51mm (telephoto) 1.0µm 2x optical zoom -16 MP 17mm (ultrawide) AF
Functions	Unknown	Auto-HDR
Video	Yes	1080p@30fps gyro-EIS
Front camera, selfie	0.3 MP Single	16 MP Single
Specifications	Unknown	16 MP f/2.0 25mm (wide) 1/3.1'' 1.0µm

Performance

Performance
Specification	A4	7T
Processor CPU	Unknown	Octa-core (1x2.96 GHz Kryo 485 & 3x2.42 GHz Kryo 485 & 4x1.78 GHz Kryo 485)
Graphics processor GPU	Unknown	Adreno 640 (700 MHz)
Antutu 7 scoreLegacy recorded score. Test conditions are unspecified; no new testing is implied.	Unknown	401214
Antutu 8 scoreLegacy recorded score. Test conditions are unspecified; no new testing is implied.	Unknown	494705
GeekBench 5 Single CoreLegacy recorded score. Test conditions are unspecified; no new testing is implied.	Unknown	761
GeekBench 5 Multi-CoreLegacy recorded score. Test conditions are unspecified; no new testing is implied.	Unknown	2697

General specs

General specs
Specification	A4	7T
Release date	2013 March	2019 September 26
Colors	white/black	Frosted Silver Glacier blue
Historical recorded priceLegacy catalogue value; date unknown. Not a current offer.	70 EUR	600 EUR
Battery life	Stand by time- Up to 250 h Talking time- Up to 4 h 20 min	Unknown
Body build	Unknown	Front glass (Gorilla Glass) back glass (Gorilla Glass) aluminum frame

Communication and Connectivity

Communication and Connectivity
Specification	A4	7T
SIM card	Dual SIM (Mini-SIM)	Dual SIM (Nano-SIM dual stand-by)
Network	Show all network frequencies: -2G - GSM 850 / 1900 - SIM 1 & SIM 2 GSM 900 / 1800 - SIM 1 & SIM 2	Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 / 1900 & TD-SCDMA -3G - HSDPA 800 / 850 / 900 / 1700(AWS) / 1800 / 1900 / 2100 -4G - LTE band 1(2100) 2(1900) 3(1800) 4(1700/2100) 5(850) 7(2600) 8(900) 12(700) 13(700) 17(700) 18(800) 19(800) 20(800) 25(1900) 26(850) 28(700) 29(700) 32(1500) 34(2000) 38(2600) 39(1900) 40(2300) 41(2500) 66(1700/2100) - EU LTE band 1(2100) 30(2300) 46 48 66(1700/2100) 71(600) - NA LTE band 1(2100) 41(2500) - CN IN
Speed	HSPA	HSPA 42.2/5.76 Mbps LTE-A (5CA) Cat18 1200/150 Mbps
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 DLNA hotspot
GPS	No	Yes with dual-band A-GPS GLONASS BDS GALILEO SBAS
USB	Proprietary	3.1 Type-C 1.0 reversible connector USB On-The-Go
Bluetooth	Yes	5.0 A2DP LE aptX HD

Music and Audio

Music and Audio
Specification	A4	7T
Radio	FM radio	No
Others	Unknown	DCI-P3 100% -HDR10+ -90Hz Active noise cancellation with dedicated mic -Dolby Atmos sound

Other features

Other features
Specification	A4	7T
Dop	Sensors Accelerometer	Sensors Fingerprint (under display optical) accelerometer gyro proximity compass - Fast battery charging 30W (Warp Charge 30T)