Our Opinion

The Samsung Galaxy M31 (6GB RAM, 128GB) is a significantly better phone than the Samsung Galaxy A30s 128GB, and is also significantly better value for money. What should you buy? Go for the Samsung Galaxy M31 (6GB RAM, 128GB)!

Samsung Galaxy A30s 128GB  Samsung Galaxy M31 (6GB RAM, 128GB) 
Samsung Galaxy A30s Samsung Galaxy M31
Buy Now Buy Buy
Excellence Score
28.7
44.7
Value for Money Score
61.2
76.3
Price ₹ 15,994 onwards ₹ 16,499 onwards
Launch Date (India) Dec, 2019 Mar, 2020
Expected Launch Date N/A N/A
Smartphone OS Android 9.0 Pie, Upgradeable to Android 10Expected update to next Android version Android 10Expected update to next Android version
Touchscreen Yes (Capacitive) Yes (Capacitive)
Screen Size 6.4 inches 6.4 inches
Screen Resolution 720x1560 pixels (~ 268 pixels per inch) 1080x2340 pixels (~ 403 pixels per inch)
Tall Aspect Ratio / Minimal Bezels Yes Yes
Scratch Resistant Display Yes Yes, Corning Gorilla Glass 3
Display Type AMOLED AMOLED
Screen Refresh Rate 60 HzStandard 60 HzStandard
Display Features Super AMOLED, Infinity-U Display Super AMOLED
Full Physical QWERTY Keypad
Processor 1.8 GHz 2.3 GHz
Processor Type Octa Core Octa Core
Processor Name Samsung Exynos 7904Ranked #65 in Mobile Processor Benchmarks Samsung Exynos 9611Ranked #37 in Mobile Processor Benchmarks
GPU Mali-G71 MP2 Mali-G72 MP3
RAM 4 GB 6 GB
3G Yes Yes
4G Yes Yes
5G
VoLTE Yes Yes
WiFi Yes Yes
VoWiFi/WiFi-Calling Yes Yes
GPS Yes Yes
Bluetooth Yes Yes
Connecting Port USB-C USB-C
Primary Camera 25MP + 8MP + 5MP 64MP + 8MP + 5MP + 5MP
Camera Auto-Focus Yes Yes
Camera Flash Yes Yes
HD Video Recording Yes (Full HD) Yes (4K)
Other Camera Features 25MP: F/1.7 Aperture; PDAF, 8MP: F/2.2 Aperture; 13mm Focal Length; Ultrawide, 5MP: F/2.2 Aperture; Depth Sensor, Panorama, HDR 64MP: f/1.8 aperture; 26mm Focal Length; 1/1.72" Sensor Size; 0.8um Pixel Size; PDAF, 8MP: f/2.2 aperture; 12mm Focal Length; Ultra-wide; 1/4.0" Sensor Size; 1.12um Pixel Size, 5MP: f/2.2 aperture; 25mm Focal Length; Macro Lens; 1/5.0" Sensor Size; 1.12um Pixel Size, 5MP: f/2.2 aperture; Depth Sensor, Panorama, HDR, Video: [email protected]; [email protected]; EIS
Secondary Camera 16MP 32MP
Secondary Camera Features F/2.0 Aperture f/2.0 aperture, 26mm Focal Length, 1/2.8" Sensor Size, 0.8um Pixel Size, HDR
Internal Memory 128 GB 128 GB
Expandable Memory Slot Yes, up to 512 GB Yes, up to 512 GB
Contacts Storage Unlimited Unlimited
SMS Storage Unlimited Unlimited
Music Player Yes Yes
FM Radio Yes Yes (Wireless)
Dual SIM GSM+GSM GSM+GSM
Thickness 7.8 mmMedium 8.9 mmMedium
Weight 169 gmMedium 191 gmHeavy
Width 74.7 mmOk for one-handed use 75.1 mmOk for one-handed use
Audio Output 3.5mm jack 3.5mm jack
Water Resistant
Battery Capacity 4000 mAh 6000 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, 15W Fast Charging Yes, 15W Fast Charging
Included Fast Charger Yes, 15.0W Fast Charger Yes, 15.0W Fast Charger
Other Battery Parameters Internet Usage Time (4G): Upto 13 hrs, Internet Usage Time (WiFi): Upto 13 hrs, Video Playback Time: Upto 21 hrs, Audio Playback Time: Upto 77 hrs, Talktime (4G): Upto 32 hrs N/A
Fingerprint sensor Yes Yes
Other Features In-display Fingerprint Sensor; NFC; Noise Filtration UFS 2.1 Storage; FM Recording; Noise Filtration
2-minute Review [Positives]
  • Well built, sleek, modern design, with a Infinity-U display
  • Eye-catching back panel with a gradient and prism-like finish
  • Large, vivid Super AMOLED, Infinity-U display with slim borders all around - everything looks colour accurate and bright
  • The Galaxy A30s runs on Samsung's new One UI, which is one of the more polished, refined takes on an Android UI, and is one of the best Android UI implementations at present, along with Oxygen OS
  • There are a number of useful features including Android Pie's Digital Wellbeing, and a whole bunch of motion gestures such as one-handed mode, Smart Stay, etc, which can be toggled on
  • Decent performance with a Exynos 7904 processor at the core (similar to Snapdragon 636) - day-to-day use is decent and complex games like PUBG are also playable at reduced graphics settings
  • Decent triple rear camera setup - primary 25MP sensor + 5MP depth sensor + 8MP ultra-wide sensor
  • The 25MP camera reproduces objects and panoramic scenes well, colours always look vivid - the edges of objects and textures lack clarity, though
  • The Primary camera can also take good macro shots - it capture more details than when in general shots, edges of objects are more distinguishable too
  • Good video quality - on par with that of other phones in this price range
  • Front camera shoots vibrant-looking portraits
  • Good Loudspeaker
  • Good call quality - it gets loud enough to make and receive calls from noisy environments
  • The 4000mAh battery is one of the Galaxy A30s's strong suits - you will easily manage to push past a full day on one charge
  • The bundled 15W fast charger is able to take the battery to about 70 percent in an hour, which is not bad at all
  • Decent looks and build quality - very similar to the Samsung Galaxy M30s, with a a unibody polycarbonate design, and glossy finish on the back panel - the only major difference is the camera module which now packs a fourth camera
  • The plastic body keeps the phone feeling relatively lightweight at 191 grams, which is mighty impressive for a phone packing a big 6000 mAh battery
  • It also feels great to hold with a seamless curved panel that meets the display up front
  • Modern, Infinity-U front - bezels around the screen are slim, except for a slightly thick chin - you still get around 90 per cent screen-to-body ratio, which is great
  • Fingerprint sensor at the back is easy to reach
  • Gorgeous, 6.4-inch FHD+ Super AMOLED display with excellent viewing angles, and brightness levels - easily one of the best displays in the price bracket
  • It also comes with "Widevine L1" certification, which helps stream content in crisp HD resolution
  • Blacks are deep on the AMOLED display, which looks good with Night mode enabled
  • Samsung's OneUI is today one of the more clean, refined Android UIs that's especially well optimised for large displays like this
  • One UI also brings in other useful stuff, like a System-wide Dark mode (which turns the background completely black, and looks great on the M30s' AMOLED display), and Always On Display option
  • Decent performance with the Exynos 9611 at the core (similar to Snapdragon 665) - the device is fairly quick to load up apps - multitasking is a breeze
  • Good quad rear camera setup - 64MP main sensor + 8MP wide-angle lens + 5MP depth sensor
  • Shots taken with the primary camera during daylight are quite satisfactory, images are detailed, especially the 64MP shots, and they showcase good dynamic range
  • The ultra-wide sensor, like on any budget phone, is a good addition - it takes social media-worthy images in great lighting conditions (in low-light, the quality dips and pictures look grainy and noisy, wide-angle shots also have barrel distortion at the edges)
  • Photos taken in low-light looks good - switching to Night mode helps reduce grain in the output and further improves image quality
  • Live Focus shots are quite impeccable and the camera app does give you the option to set the level of blur before taking a shot - edge detection is very good and the Galaxy M31 does a good job of separating the subject from the background
  • The macro camera takes decent shots outdoors (though, the quality dips when indoors and the output is restricted to 5MP in resolution)
  • The 32MP selfie camera is quite good and takes detailed selfies (though, in low light, the quality goes down a notch and results are grainy)
  • Overall, the cameras on the M30s are good for the price bracket, even though they are not the best (that title crowned to the POCO X2)
  • Monster 6000mAh battery delivers an incredible 2-3 days of usage easily, making for one of the largest battery life smartphones currently available
  • Supports 15W fast charging
  • Samsung has seen success with the Galaxy M30s, so it didn't want to fix what isn't broken, they upgraded the RAM, put in a fourth rear camera, and preloaded Android 10 - if you don't care for benchmark scores and just want a device that covers the basics and has great AMOLED display, has great battery backup and has a versatile set of cameras, the Galaxy M31 will do just fine
2-minute Review [Negatives]
  • The fingerprint sensor is sluggish - and cannot recognise fingerprints accurately
  • The Galaxy A30s is also a big phone to carry around, even if you have large hands
  • The resolution is only 720p which is rather low by today's standards
  • Unfortunately, there are still plenty of promotions, and ads to deal with, in the default phone setup
  • Given however, that other phones in this price range now come with much more powerful SoCs like the MediaTek Helio G90T and the Qualcomm Snapdragon 675, the A30s does lag behind the competition in terms of performance
  • The front 16-megapixel selfie camera is average - selfies are a bit soft in daylight and in low-light, selfies lack good detail, with visible grain
  • Camera struggles in low-light conditions - it captures hardly any details and underexposes the whole scene, with a lot of noise
  • Camera app does not have a slow-motion mode
  • Overall, the A30s is not quite as good as Samsung's other recent launches in the M and A series
  • It will face very stiff competition from the likes of the Redmi Note 8 Pro, which apart from being much more powerful, also takes a big lead in the camera department
  • Even if you want to stick to Samsung, the M30s will give you a slightly better camera performance, a bigger battery, and storage - so, significantly better value
  • The power button and volumes are quite flush with the frame which means they lack that tactile, clicky feel
  • Design feels a bit dated and underwhelming, there is no spark in Galaxy M31's design as we see in other brand's phones like Xiaomi and Realme
  • However, this is an old chipset and heavy gaming isn't best on this phone - the Redmi Note 8 Pro, the POCO X2 and the Realme XT are much better options that will handle gaming better than the Galaxy M31
  • Samsung Galaxy M31 falls behind in fast charging as competitors are offering close to 30W fast charging, the 15W on M31 feels low
  • Having said that, the Redmi Note 8 Pro and the Realme X2 will still offer you more bang for your buck overall and when it comes to intensive tasks like gaming, you’ll be better off choosing the POCO X2 or the Redmi Note 8 Pro that are probably the best phones for gaming in this segment
Expert Reviews
  1. A stylish smartphone with a few downsides
    notebookcheck.net in-depth Read Review »
  2. stuff.tv hands-on Read Review »
  1. If you don't care for benchmark scores and just want a device that covers the basics and has a great battery, the Galaxy M31 will do just fine... though, not the best bang for the buck
    gadgets.ndtv.com in-depth Read Review »
  2. Improved cameras, more RAM and the battery is just as reliable as before
    bgr.in in-depth Read Review »
  3. The combination of simple looks, lightweight design, capable quad cameras and perhaps above all the insanely long battery life makes the Galaxy 31 worth the money
    indianexpress.com in-depth Read Review »
  4. If you are looking for a smartphone that gives you long-lasting battery life, then Galaxy M31 is meant for you... not for power users though
    themobileindian.com in-depth Read Review »
  5. Unbelievably compact for a smartphone that packs a massive 6000 mAh battery
    zeebiz.com in-depth Read Review »
  6. Massive 6000mAh battery, upgraded camera
    thenewsminute.com in-depth Read Review »
  7. Perfect fit for the folks who aren't into gaming
    firstpost.com in-depth Read Review »
  8. You can go for Galaxy M31 if you want a reliable battery, an immersive display and camera-centric features packed in a handset... but it's no powerhouse
    timesnownews.com in-depth Read Review »
  9. Despite being good enough for now, the Galaxy M31 just doesn’t enthuse the kind of confidence that would see it being considered in the same breath as more powerful devices from Redmi and Realme
    indiatoday.in in-depth Read Review »
  10. The Samsung Galaxy M31 is a reliable smartphone that makes use of a great AMOLED display, has great battery backup and has a versatile set of cameras... but you’ll be better off choosing the POCO X2 or the Redmi Note 8 Pro if you like gaming
    in.mashable.com in-depth Read Review »
  11. expertreviews.co.uk in-depth Read Review »
  12. gsmarena.com hands-on Read Review »
  13. fonearena.com hands-on Read Review »
  14. ibtimes.co.in hands-on Read Review »
  15. techpp.com hands-on Read Review »
User Reviews
  1. Flipkart4.3 315+ reviews »
  1. Flipkart4.3 295+ reviews »
Official Website Official Website » Official Website »
Unofficial specs? N/A N/A
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