Karbonn A40 Indian 

price₹ 3,499 onwards

launchJul, 2017


excellence score


value for money score

 This phone is available at an "effective price" of Rs. 1, 399 from Airtel, as long as you do regular Airtel recharges. Read more here
Not available at any of our listed stores

2-Minute Review

Let's cut through the noise, and get to the crux of it. 2 Expert Reviews analysed and summarised by the PhoneCurry Editorial Team, in a short and sweet 2-minute review.


  • The plastic body of the A40 Indian feels sturdy, and doesn’t attract fingerprints
  • Overall small footprint of the phone, makes it pretty easy to handle/carry-around
  • There are rounded edges and sides which make it easy to grip
  • Typing on the A40 Indian is also quite painful as the keys on the virtual keyboard feel too tiny on this screen


  • The display smudges easily and is a pain to keep clean
  • The display is also small, and pixel density is low at 233ppi so images and text aren’t the sharpest
  • The display is pretty reflective too
  • Viewing angles are very narrow too - tilt the phone forwards a bit and the colours immediately begin inverting
  • There’s also no ambient light sensor, so you’ll have to adjust the brightness manually all the time
  • Touch response is not great either, and since the display panel isn't laminated to the glass, it feels a bit disconnected when you’re interacting with the screen
  • Sunlight legibility is also quite weak
  • The phone can handle 1080p video playback, but due to the poor viewing angles, it’s not a very pleasant experience


  • Stock Android UI keeps things nice and simple
  • There’s no notification LED either


  • Strictly basic performance - you can use the smartphone for calls and basic usage like WhatsApp and messaging, but don’t expect a good experience in any other areas


  • Mediocre rear and front cameras - image quality is low and often unusable, even for social posting - the live viewfinder is also quite laggy and preview quality is sub-par


  • The speaker gets fairly loud but the sound is a bit tinny for media files
  • The quality of the accessories, especially the headset, is quite average


  • Average battery life - with moderate to heavy use, you will need to recharge the phone within half a day
  • Charging is also painfully slow
  • Compared to the Jio Phone and BSNL’s Bharat-1 feature phones, the A40 Indian offers access to most of the popular Android apps, but at the cost of battery life


  • Supports 22 Indian languages
  • Although onboard storage isn’t much but thankfully, you can format a microSD card as part of the internal storage (effectively extending it)
  • The USB port is a bit recessed into the body, which means you can use only the bundled cable which has a slightly longer connector - standard Micro-USB cables often don’t work, which might limit the options in case users need to buy a replacement later
  • No support for GPS

Expert Reviews

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  1. gadgets.ndtv.com in-depth Read Review »
  2. fonearena.com hands-on Read Review »

User Reviews

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Karbonn A40 Indian Specifications

Operating System
Smartphone OSAndroid 7.0 NougatNo updates expected
TouchscreenYes (Capacitive)
Screen Size4 inches
Screen Resolution480x800 pixels (~ 233 pixels per inch)
Display TypeIPS LCD
Screen Refresh Rate60 HzStandard
  • Accelerometer
Processor1.3 GHz, Quad Core
Internal Memory8 GB
Expandable Memory SlotYes, up to 32 GB
Battery Capacity1400 mAh
Battery Standby200 hrs
Battery Talktime4.00 hrs
Other Battery Parameters
  • Charging Time: 3 hrs
Weight118 gmLight
Thickness10.5 mmThick
Primary Camera2.0MP
Camera FlashYes
Other Camera Features
  • Panorama
  • Smile Shutter
  • Burst Mode
  • GIF Mode
Secondary Camera0.3MP
Secondary Camera Features
  • V-gesture
Connecting PortUSB
2G Internet (GPRS/EDGE)Yes
App StoreGoogle Play Store
FM RadioYes
  • 22 Indian Language Support
  • QR Code Scanner

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