Our Opinion

The Xiaomi Redmi 9 Prime 64GB is a slightly better phone than the Samsung Galaxy A21s (4GB RAM, 64GB), and is also significantly better value for money. What should you buy? Go for the Xiaomi Redmi 9 Prime 64GB!

Samsung Galaxy A21s (4GB RAM, 64GB)  Xiaomi Redmi 9 Prime 64GB 
Samsung Galaxy A21s Xiaomi Redmi 9
Buy Now Buy Buy
Excellence Score
27.9
30.6
Value for Money Score
65.7
84.3
Price ₹ 13,449 onwards ₹ 8,859 onwards
Launch Date (India) Jun, 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 6.53 inches
Screen Resolution 720x1600 pixels (~ 270 pixels per inch) 1080x2340 pixels (~ 395 pixels per inch)
Tall Aspect Ratio / Minimal Bezels Yes Yes
Scratch Resistant Display Yes Yes, Corning Gorilla Glass 3
Display Type TFT LCD IPS LCD
Screen Refresh Rate 60 HzStandard 60 HzStandard
Display Features N/A 2.5D Curved Glass, Sunlight Mode, Reading mode, Color temperature adjustment, Standard mode
Full Physical QWERTY Keypad
Processor 2 GHz 2 GHz
Processor Type Octa Core Octa Core
Processor Name Samsung Exynos 850Ranked #65 in Mobile Processor Benchmarks Mediatek Helio G80Ranked #35 in Mobile Processor Benchmarks
GPU Mali-G52 Mali-G52 MC2
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 USB-C
Primary Camera 48MP + 8MP + 2MP + 2MP 13MP + 8MP + 5MP + 2MP
Camera Auto-Focus Yes Yes
Camera Flash Yes Yes
HD Video Recording Yes (Full HD) 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; 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 13MP: f/2.2 Aperture; 28mm Focal Length; 1/3.1" Sensor Size; 1.12um Pixel Size; PDAF, 8MP: f/2.2 Aperture; 118-degree Ultra-wide; 1/4.0" Sensor Size; 1.12um Pixel Size, 5MP: f/2.4 Aperture; Macro Lens, 2MP: f/2.4 Aperture; Depth Sensor
Secondary Camera 13MP 8MP
Secondary Camera Features f/2.2 Aperture; 1/3.1" Sensor Size; 1.12um Pixel Size F/2.0 Aperture, 1.12um Pixel Size, AI Beautify 4.0, Portrait mode, HDR, Screen Flash, Selfie timer, Face recognition, Palm shutter
Internal Memory 64 GB 64 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 9.1 mmThick
Weight 192 gmHeavy 198 gmHeavy
Width 75.3 mmOk for one-handed use 77.0 mmInconvenient for one-handed use
Audio Output 3.5mm jack 3.5mm jack
Water Resistant Yes, Splash resistant
Battery Capacity 5000 mAh 5020 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, 18W 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]
  • 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
  • Striking, shade shifting rear design - the Redmi 9 Prime's looks similar to the more expensive Poco X2 with its quad-camera arrangement in a circular patch
  • The front is the routine, dew-drop notch with decent bezels
  • The fingerprint scanner is on the back and it is fast and reliable
  • The textured back of the Redmi 9 feels great in the hand and provides excellent grip
  • Sharp, vibrant, and vivid 6.53-inch full HD+ IPS display - keeping the price-point of the phone in mind, Redmi 9 Prime offers a pretty good display
  • MIUI 11 is as feature rich as ever, the overall interface on the phone is quite smooth and user friendly - Android 10 is running beneath all the jazz
  • Very good performance from the new MediaTek G80 chipset (similar to the Snapdragon 712) - the phone smoothly handles day-to-day task with ease and heavy games like PUBG Mobile run reasonably well
  • Decent quad-camera setup - a 13MP main, an 8MP ultra-wide, a 5MP macro camera, and a 2MP depth sensor
  • The photos from the main camera are good for this budget class
  • The ultra-wide camera is among the better ones at this price and captures more of the scene easily
  • The macro camera puts out decent close-ups if you get the distance right with its fixed focus lens
  • The portraits are detailed, and the blur is convincing thanks to the dedicated depth sensor
  • Decent selfies from the 8MP front camera - portrait mode is available for selfies too, and it is as competent as a single fixed-focus camera can be
  • Excellent battery life with the 5020 mAh cell - with regular use, the Redmi 9 Prime easily lasts through two days of use
  • Redmi 9 Prime is a great option for people looking for a phone with decent gaming performance, good display, and solid battery life at an affordable price
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 display has average sunlight legibility and you’d have to keep the brightness all the way up for more clarity
  • It packs in plenty of bloatware, so you can get strange notifications and ads, which is annoying
  • Average low-light photos, the camera struggles to get the exposure right
  • Charging is a bit slow - the 10W charger included in the box tops up the Redmi 9 Prime in 2 hours and 48 minutes
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 Redmi 9 Prime is an excellent budget phone that seems easy to recommend
    gsmarena.com in-depth Read Review »
  2. It's hard to find a better phone at this price point
    phonearena.com in-depth Read Review »
  3. The full-HD+ display and the big battery give this phone an edge over the competition
    gadgets.ndtv.com in-depth Read Review »
  4. Redmi 9 Prime is one of the best phones in the price bracket
    indianexpress.com in-depth Read Review »
  5. Redmi 9 Prime strikes a good balance between style, battery, and performance
    in.mashable.com in-depth Read Review »
  6. Redmi 9 Prime's performance for its price point is very Note-worthy!
    techpp.com in-depth Read Review »
  7. If you are a gamer on a tight budget, Redmi 9 Prime makes for a value for money package
    timesnownews.com in-depth Read Review »
  8. Redmi 9 Prime promises a lot of power with its MediaTek Helio G80 SoC and impressive camera performance all on a tight budget
    indiatoday.in in-depth Read Review »
  9. fonearena.com in-depth Read Review »
  10. bgr.in in-depth Read Review »
  11. news18.com in-depth Read Review »
  12. themobileindian.com in-depth Read Review »
  13. gadgetsnow.com in-depth Read Review »
  14. business-standard.com in-depth Read Review »
User Reviews
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Official Website Official Website » Official Website »
Unofficial specs? N/A N/A
Individual Review 2
  • Individual Review 2
Individual Review

Samsung Galaxy A21s review

GSMArena Official

Top Pick

Individual Review

Xiaomi Redmi 9 (Redmi 9 Prime) review

GSMArena Official

Top Pick

Full Review

Samsung Galaxy A21s review

GSMArena Official

Full Review

Xiaomi Redmi 9 (Redmi 9 Prime) review

GSMArena Official

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