Our Opinion

The Samsung Galaxy M21 (4GB RAM, 64GB) is a significantly better phone than the realme Narzo 20A (4GB RAM, 64GB), and is also slightly better value for money. What should you buy? Go for the Samsung Galaxy M21 (4GB RAM, 64GB)!

Samsung Galaxy M21 (4GB RAM, 64GB)  realme Narzo 20A (4GB RAM, 64GB) 
Samsung Galaxy M21 realme Narzo 20A
Buy Now Buy Buy
Excellence Score
34.1
27.4
Value for Money Score
76.9
73.7
Price ₹ 12,499 onwards ₹ 9,499 onwards
Launch Date (India) Mar, 2020 Sep, 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 6.4 inches 6.5 inches
Screen Resolution 1080x2340 pixels (~ 403 pixels per inch) 720x1600 pixels (~ 270 pixels per inch)
Tall Aspect Ratio / Minimal Bezels Yes Yes
Scratch Resistant Display Yes, Corning Gorilla Glass 3 Yes, Corning Gorilla Glass
Display Type AMOLED IPS LCD
Screen Refresh Rate 60 HzStandard 60 HzStandard
Display Features Super AMOLED Night mode
Full Physical QWERTY Keypad
Processor 2.3 GHz 2 GHz
Processor Type Octa Core Octa Core
Processor Name Samsung Exynos 9611Ranked #37 in Mobile Processor Benchmarks Qualcomm Snapdragon 665Ranked #45 in Mobile Processor Benchmarks
GPU Mali-G72 MP3 Adreno 610
RAM 4 GB 4 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 microUSB
Primary Camera 48MP + 8MP + 5MP 12MP + 2MP + 2MP
Camera Auto-Focus Yes Yes
Camera Flash Yes Yes
HD Video Recording Yes (4K) Yes (Full HD)
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; 12mm Focal Length; Ultra-wide; 1/4.0" Sensor Size; 1.12um Pixel Size, 5MP: f/2.2 aperture; Depth Sensor, Panorama, HDR, Video: [email protected]; [email protected]; EIS 12MP: f/1.8 Aperture; 5P lens; PDAF, 2MP: Depth Sensor, 4x Digital Zoom, Super Nightscape, Panoramic, Expert, Timelapse, Portrait Mode, HDR, AI Beauty, Filter, Chroma Boost
Secondary Camera 20MP 8MP
Secondary Camera Features f/2.0 aperture, 26mm Focal Length, HDR f/2.0 Aperture, Portrait Mode, Timelapse, Panoramic, AI Beauty, HDR, Filter
Internal Memory 64 GB 64 GB
Expandable Memory Slot Yes, up to 512 GB Yes, up to 256 GB
Contacts Storage Unlimited Unlimited
SMS Storage Unlimited Unlimited
Music Player Yes Yes
FM Radio Yes (Wireless) Yes
Dual SIM GSM+GSM GSM+GSM
Thickness 8.9 mmMedium 8.9 mmMedium
Weight 188 gmMedium 195 gmHeavy
Width 75.1 mmOk for one-handed use 75.4 mmOk for one-handed use
Audio Output 3.5mm jack 3.5mm jack
Water Resistant
Battery Capacity 6000 mAh 5000 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
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
2-minute Review [Positives]
  • Decent looks and build quality - very similar to the Samsung Galaxy M31, with a a unibody polycarbonate design, and glossy finish on the back panel - the only major difference is the camera module which houses a triple rear camera
  • The plastic body keeps the phone feeling relatively lightweight at 188 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 and work very well
  • 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 M21's 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
  • Decent triple rear camera setup - a 48MP primary snapper, an 8MP ultra-wide lens and a 5MP depth sensor
  • In broad daylight, you'll get consistent, crispy shots with decent dynamic range and sharpness levels are respectable with the primary lens
  • 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)
  • Live Focus shots are quite good 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 M21 does a good job of separating the subject from the background
  • The 20MP selfie camera is quite good and takes detailed selfies (though, in low light, the quality goes down a notch and results are grainy)
  • Monster 6000 mAh 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
  • If you're someone who consumes a lot of content on their phone, the Galaxy M21 is a good phone for you, it has great AMOLED display, outstanding battery backup that will last you for days
  • Catchy, elegant 'V-pattern' rear design - the V-design at the back with a smooth texture gives the device a good look
  • Trendy, tear-drop notch front design - the bezels on the sides are thin for smartphones at this price
  • The 20:9 aspect ratio makes the smartphone tall and slim, so it's relatively comfortable to hold and use
  • The fingerprint scanner is located on the rear and works well, so does the Face Unlock
  • The weight is evenly distributed, the device doesn't feel too heavy to hold
  • Large, 6.5 inch IPS display with HD+ resolution - the colors are vibrant with a decent amount of sharpness
  • Sunlight legibility is decent - the display gets bright enough for comfortable outdoor use
  • The Narzo 20A comes with Realme UI based on Android 10 which is much more streamlined and clean compared to previous realme phones - it still packs a lot of useful features like Dark Mode, Focus mode, Game Space and Personal Information Protection
  • Decent triple camera setup for the price - a 12MP primary shooter + a 2MP depth sensor + a 2MP ‘retro’ unit
  • The primary camera can take nice pictures in good lighting conditions, the colour accuracy is good and the dynamic range and sharpness are also decent enough and for a phone at this price
  • There's also a decent Macro mode which lets you get very close to the subject (focusing at a close distance could be an issue though)
  • The portrait shots also come out good and they are usable for most scenarios
  • Decent video recording quality, with a option to shoot slow-motion videos
  • Impressive battery life with a big 5000 mAh battery - it lasts for two full days on a single charge with moderate usage
2-minute Review [Negatives]
  • 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 M21'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 9 Pro and the Realme 6 are much better options that will handle gaming better than the Galaxy M21
  • Photos taken in low-light are average - focusing gets worse in low light and the extreme noise-correction makes images look like water paintings
  • Overall, the cameras on the M21 are decent, but there are better cameras available in this price bracket, including the Galaxy M31, which is just a tad bit pricier
  • Samsung Galaxy M11 falls behind in fast charging as competitors are offering close to 30W fast charging, the 15W on M21 feels low
  • Having said that, the Redmi Note 9 Pro and the Realme 6 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 Realme 6 or the Redmi Note 8 Pro that are probably the best phones for gaming in this segment
  • There is no Widevine L1 certification which means that you cannot enjoy HD content on Netflix and Amazon Prime
  • There's still some bloatware that comes pre-installed
  • Poor performance from the Snapdragon 665 SOC - opening up apps, scrolling through the interface, heading to settings, or even just going through the list of apps is a painfully slow process - the performance of the phone is pretty disappointing to the extent that this could be one of the worst-performing phones in some years
  • Low light photos are average, as expected, they lack detail and aren't very sharp
  • Selfies are average too with inaccurate colour tone and low sharpness and details - the portrait selfie is not very consistent either
  • Still offers the old MicroUSB, while the competition has started offering USB Type-C in the budget segment
  • Charging is on the slower side with the 10W charger - it takes over 3 hours to charge the smartphone completely
  • The Realme Narzo 20A offers a good display, new design, and excellent battery life, however, the performance lets you down big time - with Realme Narzo 20A letting you down even with basic apps and day to day usage, it is difficult to recommend this phone to anyone
Expert Reviews
  1. All the battery life you need
    fonearena.com in-depth Read Review »
  2. Big battery and display at an affordable price
    indiatoday.in in-depth Read Review »
  3. A good option if you are out in the market looking for a capable smartphone that is not Xiaomi or Realme
    business-standard.com in-depth Read Review »
  4. A Phone That Caters Best To Video Content Consumers
    in.mashable.com in-depth Read Review »
  5. Sharp display, good cameras, decent performance and an amazing battery life, though the Galaxy M31 is better
    zeebiz.com in-depth Read Review »
  6. bgr.in in-depth Read Review »
  7. economictimes.indiatimes.com in-depth Read Review »
  8. news18.com in-depth Read Review »
  9. gadgetsnow.com in-depth Read Review »
  10. gsmarena.com hands-on Read Review »
  11. ibtimes.co.in hands-on Read Review »
  1. The Realme Narzo 20A is a phone that offers excellent battery life, good design and display... though, when it comes to the performance, it fails miserably
    techradar.com in-depth Read Review »
  2. A rather middling experience
    news18.com in-depth Read Review »
  3. Realme Narzo 20A seems to be a decent smartphone but software needs an update... as of now, it is buggy and shows signs of lagging
    themobileindian.com in-depth Read Review »
  4. techpp.com in-depth Read Review »
  5. gadgets.ndtv.com hands-on Read Review »
User Reviews
  1. Flipkart4.3 140+ reviews »
  1. Flipkart4.5 627+ reviews »
Official Website Official Website » Official Website »
Unofficial specs? N/A N/A
Individual Review 1
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