Our Opinion

The Samsung Galaxy M31s (6GB RAM) is a significantly better phone than the Samsung Galaxy A21s (6GB RAM, 128GB), and is also slightly better value for money. What should you buy? Go for the Samsung Galaxy M31s (6GB RAM)!

Samsung Galaxy A21s (6GB RAM, 128GB)  Samsung Galaxy M31s (6GB RAM) 
Samsung Galaxy A21s Samsung Galaxy M31s
Buy Now Buy Buy
Excellence Score
36.8
49.1
Value for Money Score
69.2
72.7
Price ₹ 16,999 onwards ₹ 18,499 onwards
Launch Date (India) Oct, 2020 Aug, 2020
Expected Launch Date N/A N/A
Smartphone OS Android 10Expected update to next Android version Android 10Expected update to next Android version
Touchscreen Yes (Capacitive) Yes (Capacitive)
Screen Size 6.5 inches 6.5 inches
Screen Resolution 720x1600 pixels (~ 270 pixels per inch) 1080x2400 pixels (~ 405 pixels per inch)
Tall Aspect Ratio / Minimal Bezels Yes Yes
Scratch Resistant Display Yes Yes, Corning Gorilla Glass 3
Display Type TFT LCD AMOLED
Screen Refresh Rate 60 HzStandard 60 HzStandard
Display Features N/A N/A
Full Physical QWERTY Keypad
Processor 2 GHz 2.3 GHz
Processor Type Octa Core Octa Core
Processor Name Samsung Exynos 850Ranked #64 in Mobile Processor Benchmarks Samsung Exynos 9611Ranked #37 in Mobile Processor Benchmarks
GPU Mali-G52 Mali-G72 MP3
RAM 6 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 48MP + 8MP + 2MP + 2MP 64MP + 12MP + 5MP + 5MP
Camera Auto-Focus Yes Yes
Camera Flash Yes Yes
HD Video Recording Yes (Full HD) Yes (4K)
Other Camera Features 48MP: f/2.0 Aperture; 26mm Focal Length; 1/2.0" Sensor Size; 0.8um Pixel Size; PDAF, 8MP: f/2.2 Aperture; 123-degree Field-of-view; Ultra-wide Lens; 1/4.0" Sensor Size; 1.12um Pixel Size, 2MP: f/2.4 Aperture; Macro Camera, 2MP: f/2.4 Aperture; Depth Sensor 64MP: f/1.8 Aperture; 26mm Focal Length; 1/1.72"; 0.8um Pixel Size; PDAF, 12MP: f/2.2 Aperture; 123-degree ultra-wide lens, 5MP: f/2.4 Aperture; Macro Camera, 5MP: f/2.4 Aperture; Depth Sensor
Secondary Camera 13MP 32MP
Secondary Camera Features f/2.2 Aperture; 1/3.1" Sensor Size; 1.12um Pixel Size f/2.2 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 8.9 mmMedium 9.3 mmThick
Weight 192 gmHeavy 203 gmHeavy
Width 75.3 mmOk for one-handed use 74.4 mmOk for one-handed use
Audio Output 3.5mm jack 3.5mm jack
Water Resistant
Battery Capacity 5000 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, 25W Fast Charging
Included Fast Charger Yes, 15.0W Fast Charger Yes, 25.0W Fast Charger
Other Battery Parameters N/A N/A
Fingerprint sensor Yes Yes
Other Features Noise Filtration UFS 2.1 Storage; FM Recording; Noise Filtration
2-minute Review [Positives]
  • Looks sleek and eye-catching with its iridescent finish - the plastic back has this rainbow-like effect
  • The front looks trendy with minimal screen bezels and an unobtrusive hole-punch in the top-left corner
  • Samsung has gotten the software part on point with its recent launches, with it's new One UI, that's now one of the better, more streamlined Android skins around - it's especially well suited for big displays like this, packs an intuitive gesture navigation system, and other useful things like a convenient 'dark mode'
  • Good quadruple-camera array - a primary 48MP lens, supported by an 8MP ultra-wide angle unit, 2MP macro camera and a 2MP depth sensor
  • The Galaxy A21s manages to take a pretty good picture from the primary camera - it produces wonderfully detail-rich images with plenty of vibrancy
  • Live Focus mode (portrait mode) allows adjusting the level of blur either before, or after, you press the shutter button, and the results are good
  • Macro mode is also a lot of fun - it captures some crisp closeups
  • Excellent battery life with the 5000 mAh cell - combined with a low-res screen and a power-efficient CPU, it would easily last you for 2 days of moderate use
  • Supports 15W fast charging
  • Sleek, classy design - the Galaxy M31s seems identical to the Galaxy A51, with a glossy polycarbonate back design - giving it a premium look
  • The front gets a new trendy look with a hole-punch display, a first for the M-series
  • It has good ergonomics and feels comfortable to hold and operate
  • The side-mounted fingerprint scanner is quick to unlock the device
  • Vivid, crisp and punchy 6.5-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 Dark mode enabled
  • Samsung's OneUI is today one of the more clean, refined Android UIs that's especially well optimized for large displays like this one
  • 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 M31s' AMOLED display), and Always On Display option
  • Decent performance with the Exynos 9611 at the core (similar to Snapdragon 665) - the phone is good for basic operations
  • Good quad rear camera setup - 64MP main sensor + 12MP wide-angle lens + 5MP depth sensor + a 5MP macro camera
  • Shots taken with the primary camera during daylight are quite satisfactory, images are detailed, especially the 64MP shots, and they showcase the 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 single take is a nice addition from the more expensive S20 series, it lets you capture multiple formats at once
  • 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 M31s 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 25W fast charging - the phone takes around 2 hours to charge the battery completely, which is decent
  • Consider the Galaxy M31s for its vivid display, capable optics and stellar on-battery time
2-minute Review [Negatives]
  • Average 6.5-inch TFT LCD - the HD resolution is rather low for a phone at this price, and the colour reproduction isn't great
  • The Galaxy A21s is powered by Samsung's new Exynos 850 chipset, which gets things done and that's about it - it doesn't compete with the powerful processor other phones offer and heavy games are a no go
  • Overall, the Galaxy A21s has quite capable cameras, though they aren't the class-leading
  • On the whole, while the Galaxy A21s is a fashionable choice for the price bracket, and does exceptionally well with battery life and a decent set of cameras - however, it falls a bit behind in terms of performance and display - you will find better all-round options from the likes of Xiaomi, Realme and Motorola
  • The Galaxy M31s feels hefty at 9.3mm thickness and 203g weight (though, it's worth it for the 6000 mAh battery it packs)
  • However, it is an old chipset and heavy gaming and multi-tasking are taxing for the phone - the POCO X2 and the Realme 6 Pro are much better options that will handle gaming better than the Galaxy M31s
  • Look elsewhere if performance and gaming capabilities are your primary deciding factors - the phones like Realme 6 Pro and Redmi X2 are better equipped to meet your requirements in the performance segment
Expert Reviews
  1. The Galaxy A21s seems like a reasonable offer
    gsmarena.com in-depth Read Review »
  2. If you’re looking for a good budget-friendly smartphone with solid battery life and a big display, the Galaxy A21s might be a good candidate for you
    phonearena.com in-depth Read Review »
  3. The Galaxy A21s manages to exceed expectations, but the competition is tough
    expertreviews.co.uk in-depth Read Review »
  4. Stellar battery life and a nice enough design are pitched into a package that lacks power and doesn't have a great display
    pocket-lint.com in-depth Read Review »
  1. The Galaxy M31s gets a fresh look, the new Infinity-O AMOLED display, and faster charging with a higher capacity bundled charger, just the processor remains the same old
    gadgets.ndtv.com in-depth Read Review »
  2. Best M-series smartphone yet
    bgr.in in-depth Read Review »
  3. The Galaxy M31s gives a premium impression, good enough to give tough competition to the OnePlus Nord
    indianexpress.com in-depth Read Review »
  4. The Galaxy M31s gets you the right combination of battery-friendly performance with a dash of style and the convenience and comfort of an AMOLED display... just don’t game on it
    firstpost.com in-depth Read Review »
  5. The Samsung Galaxy M31s is a capable smartphone that would have been an all-round package if it had a better processor
    business-standard.com in-depth Read Review »
  6. Buy it for the display and battery life
    indiatoday.in in-depth Read Review »
  7. fonearena.com in-depth Read Review »
  8. pocketnow.com in-depth Read Review »
  9. themobileindian.com in-depth Read Review »
  10. neowin.net in-depth Read Review »
  11. gadgetsnow.com in-depth Read Review »
  12. zeebiz.com in-depth Read Review »
  13. in.mashable.com in-depth Read Review »
  14. techpp.com in-depth Read Review »
  15. tech.hindustantimes.com in-depth Read Review »
  16. gsmarena.com hands-on Read Review »
User Reviews
  1. Flipkart4.2 434+ reviews »
  1. Flipkart4.3 13+ reviews »
Official Website Official Website » Official Website »
Unofficial specs? N/A N/A
Individual Review 2
  • Individual Review 2
Individual Review

Samsung Galaxy A21s review

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Samsung Galaxy A21s review

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