Our Opinion

The Samsung Galaxy M40 is a slightly better phone, but the Oppo A31 (6GB RAM, 128GB) is significantly better value for money. Which phone should you buy? Depends on how much your want to spend!

Oppo A31 (6GB RAM, 128GB)  Samsung Galaxy M40 
Oppo A31 Samsung Galaxy M40
Buy Now Buy Buy
Excellence Score
Value for Money Score
Price ₹ 11,990 onwards ₹ 15,999 onwards
Launch Date (India) May, 2020 Jun, 2019
Expected Launch Date N/A N/A
Smartphone OS Android 9.0 PieLow likelihood of getting updated to next Android version Android 9.0 Pie, Upgradeable to Android 10Expected update to next Android version
Touchscreen Yes (Capacitive) Yes (Capacitive)
Screen Size 6.5 inches 6.3 inches
Screen Resolution 720x1600 pixels (~ 270 pixels per inch) 1080x2340 pixels (~ 409 pixels per inch)
Tall Aspect Ratio / Minimal Bezels Yes Yes
Scratch Resistant Display Yes Yes, Corning Gorilla Glass
Display Type IPS LCD IPS LCD
Screen Refresh Rate 60 HzStandard 60 HzStandard
Display Features N/A Punch hole Camera
Full Physical QWERTY Keypad
Processor 2.3 GHz 2 GHz
Processor Type Octa Core Octa Core
Processor Name MediaTek Helio P35Ranked #68 in Mobile Processor Benchmarks Qualcomm Snapdragon 675Ranked #28 in Mobile Processor Benchmarks
GPU PowerVR GE8320 Adreno 612
3G Yes Yes
4G Yes Yes
VoLTE Yes Yes
WiFi Yes Yes
VoWiFi/WiFi-Calling Yes Yes
GPS Yes Yes
Bluetooth Yes Yes
Connecting Port microUSB USB-C
Primary Camera 12MP + 2MP + 2MP 32MP + 8MP + 5MP
Camera Auto-Focus Yes Yes
Camera Flash Yes Yes
HD Video Recording Yes (Full HD) Yes (4K)
Other Camera Features 12MP: f/1.8 Aperture; PDAF, 2MP: f/2.4 aperture; 27mm Focal Length; Macro; 1/5.0" Sensor Size; 1.75um Pixel Size, 2MP: f/2.4 aperture; Depth Sensor, HDR, Panorama 32MP: F/1.7 Aperture; 0.8um; PDAF, 8MP: F/2.2 Aperture; 12mm Focal Length (ultrawide); 1.12um Pixel Size; PDAF, 5MP: F/2.2 Aperture; Depth Sensor, Panorama, HDR, Video: [email protected]; [email protected]
Secondary Camera 8MP 16MP
Secondary Camera Features f/2.0 aperture, HDR F/2.0 Aperture, HDR
Internal Memory 128 GB 128 GB
Expandable Memory Slot Yes, up to 256 GB Yes, up to 512 GB
Contacts Storage Unlimited Unlimited
SMS Storage Unlimited Unlimited
Music Player Yes Yes
FM Radio Yes Yes
Dual SIM GSM+GSM GSM+GSM (Hybrid SIM slot)
Thickness 8.3 mmMedium 7.9 mmMedium
Weight 180 gmMedium 168 gmMedium
Width 75.5 mmOk for one-handed use 73.9 mmOk for one-handed use
Audio Output 3.5mm jack USB-C
Water Resistant
Battery Capacity 4230 mAh 3500 mAh
Battery Standby N/A N/A
Battery Standby (3G) N/A N/A
Battery Talktime N/A N/A
Battery Talktime (3G) N/A N/A
Fast Charging Support Yes
Included Fast Charger Yes, 15.0W Fast Charger
Other Battery Parameters N/A N/A
Fingerprint sensor Yes Yes
Other Features Noise Filtration Noise Filtration; Dolby Atmos
2-minute Review [Positives] N/A
  • The M40 is the first mid-range phone from Samsung with an Infinity O display (till now it was only available with the Galaxy S10 series) - the front camera is under the display in the hole punch on the top left of the screen which helps achieve a near bezel-less display - the phone is definitely a head-turner
  • The body is polycarbonate (though it feels glass-like) has a very premium look and a slight gradient effect
  • Polycarbonate body also means that the phone is pretty light-weight
  • The middle camera sensor at the back has a silver ring around it, which stands out very subtly
  • Large, bright display - you get good viewing angles and sharpness
  • Samsung's new One UI is one of the most clean, and refined implementations of Android at present, and is quite smooth in day-to-day use - so on the software front, Samsung scores a big point
  • Solid performance with the powerful Snapdragon 675 processor (same as Xiaomi Redmi Note 7 Pro) - everything from day-to-day performance, to games, is smooth
  • Decent set of triple rear cameras (standard + ultra-wide + depth)
  • Image quality is reasonably good in well-lit environments
  • Portrait shots came out really well with the subject well defined and the background blurred
  • The 16MP front camera also does a decent job of taking pictures in daylight - the photos look sharp with enough details and colours are close to natural
  • Overall, the camera performance isn’t the strongest in its price range, but fairly good overall
  • A stand out feature is the On Screen sound technology where the display doubles up as a speaker (it works well)
  • Good battery life with a 3500mAh battery - you can expect it to comfortably last the day - though of course it's not quite as brilliant as the 5000mAH batteries on the Galaxy M30 and M20
  • Samsung continues it's smart comeback into the mid-range with another good addition to the M-series - the M40 is a good alternative to consider in this price bracket, for people who want to prioritise a stylish cutting-edge design, and a 'notch-less' screen
2-minute Review [Negatives] N/A
  • Both fingerprint unlock (the fingerprint sensor is on the back), and the face unlock, while decent, aren't the fastest
  • It's not AMOLED though, so purely quality wise, the display is not quite as vibrant and punchy as the Galaxy M30
  • Tends to warm up a little bit, during heavy gaming
  • Low light performance from both the rear and front cameras is pretty average though
  • There is no 3.5-mm headset jack, which could be an issue for some users (USB-C headphones are bundled though)
  • There is some pretty good competition though, make no mistake - there is Samsung's own Galaxy M30 (cheaper, better display, better battery, headphone jack, although it has a slightly inferior processor, and not the cutting edge 'punch-hole' design), the Poco F1 (flagship Snapdragon 845, headphone jack, though it doesn't have a very modern design), and the Redmi Note 7 Pro (cheaper, better battery, headphone jack, though MIUI is not as simple/refined as the One UI) - all of which are excellent value themselves, so what you chose will depend on what you value
Expert Reviews N/A
  1. We find it hard to recommend the Galaxy A60/M40 in the presence of phones such as the Realme X, and the Redmi K20 in the same price range
    gsmarena.com in-depth Read Review »
  2. A well balanced phone...but it's own sibling M30 undercuts the M40 to offer a better overall value
    techradar.com in-depth Read Review »
  3. Solid overall performer, and the most polished M-series offering by Samsung till date...but falls a bit short of being the undisputed leader that it could have been
    gadgets.ndtv.com in-depth Read Review »
  4. One of the finest smartphone in its price range
    bgr.in in-depth Read Review »
  5. Gets a lot of things right..If you are looking to buy a mid-range smartphone that offers a large display for watching videos, has a respectable camera and looks stylish, I think you should probably consider the Galaxy M40
    indianexpress.com in-depth Read Review »
  6. Power-packed device with a fresh look and good performance...set to further challenge rivals like Xiaomi
    economictimes.indiatimes.com in-depth Read Review »
  7. Ticks all the boxes for a premium mid-range phone
    hindustantimes.com in-depth Read Review »
  8. A great phone for its price
    livemint.com in-depth Read Review »
  9. Brings in a higher brand value than most of the other Chinese competition...If that prestige matters more than the marginally better user experience found on the others, then the Samsung M40 is your best option
    in.mashable.com in-depth Read Review »
  10. While the Galaxy M40 offers some neat features, it is ultimately undone by Samsung's own Galaxy A50, and M30, in the value-for-money stakes
    indiatoday.in in-depth Read Review »
  11. Overall, we did like the Samsung Galaxy M40
    timesnownews.com in-depth Read Review »
  12. themobileindian.com in-depth Read Review »
  13. androidauthority.com hands-on Read Review »
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Official Website Official Website » Official Website »
Unofficial specs? N/A N/A
Individual Review 1
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Individual Review

Samsung Galaxy M40 Review with Pros & Cons - Mixed Feeli...


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Samsung Galaxy M40 Review with Pros & Cons - Mixed Feelings


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