Our Opinion

The Samsung Galaxy S9 Plus 64GB is a slightly better phone, but the Samsung Galaxy A51 is significantly better value for money. Which phone should you buy? Depends on how much your want to spend!

Samsung Galaxy A51  Samsung Galaxy S9 Plus 64GB 
Samsung Galaxy A51 Samsung Galaxy S9 Plus
Buy Now Buy Buy
Excellence Score
51.1
54.5
Value for Money Score
64.1
55.8
Price ₹ 25,250 onwards ₹ 32,998 onwards
Launch Date (India) Jan, 2020 Mar, 2018
Expected Launch Date N/A N/A
Smartphone OS Android 10Expected update to next Android version Android 8.0 Oreo, Upgradeable to Android 10Expected update to next Android version
Touchscreen Yes (Capacitive) Yes (Capacitive)
Screen Size 6.5 inches 6.2 inches
Screen Resolution 1080x2400 pixels (~ 405 pixels per inch) 1440x2960 pixels (~ 531 pixels per inch)
Tall Aspect Ratio / Minimal Bezels Yes Yes
Scratch Resistant Display Yes, Corning Gorilla Glass 3 Yes, Corning Gorilla Glass 5
Display Type AMOLED AMOLED
Display Features Super AMOLED Super AMOLED, 3D Touch (home button only), Always-on display
Full Physical QWERTY Keypad
Processor 2.3 GHz 2.8 GHz
Processor Type Octa Core Octa Core
Processor Name Samsung Exynos 9611Ranked #30 in Mobile Processor Benchmarks Exynos 9810Ranked #12 in Mobile Processor Benchmarks
GPU Mali-G72 MP3 Mali-G72 MP18
RAM 6 GB 6 GB
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 USB-C USB-C
Primary Camera 48MP + 12MP + 5MP + 5MP 12MP + 12MP
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; 1/2" Sensor Size; 0.8um Pixel Size; PDAF, 12MP: f/2.2 Aperture; 13mm Focal Length (Ultra-wide), 5MP: f/2.4 Aperture; Dedicated Macro camera, 5MP: f/2.2 Aperture; Depth sensor, Panorama, HDR 12MP: F/1.5-2.4 Aperture; 26mm Focal Length; 1/2.55" Sensor Size; 1.4µm Pixel Size; Dual Pixel PDAF, 12MP: F/2.4 Aperture; 52mm Focal Length; 1/3.6" Sensor Size; 1µm Pixel Size; Autofocus; 2x Optical Zoom, Phase Detection Autofocus (PDAF), Optical Image Stabilisation (OIS), Geo-tagging, Simultaneous 4K video and 9MP image recording, Touch focus, Face/Smile Detection, Auto HDR, Panorama, HDR, Dual-Video rec., Slow-motion Video
Secondary Camera 32MP 8.0MP
Secondary Camera Features f/2.2 Aperture, 26mm Focal Length, 1/2.8" Sensor Size, 0.8um Pixel Size, HDR F/1.6 Aperture, Autofocus, Full HD+ Video Recording, Dual Video call, Auto HDR
Internal Memory 128 GB 64 GB
Expandable Memory Slot Yes, up to 512 GB Yes, up to 400 GB
Contacts Storage Unlimited Unlimited
SMS Storage Unlimited Unlimited
Music Player Yes Yes
FM Radio Yes
Dual SIM GSM+GSM GSM+GSM (Hybrid SIM slot)
Thickness 7.9 mmMedium 8.5 mmMedium
Weight 172 gmMedium 189 gmMedium
Width 73.6 mmOk for one-handed use 73.8 mmOk for one-handed use
Audio Output 3.5mm jack 3.5mm jack
Water Resistant Yes, IP68 Rated (up to 1.5m for 30 mins)
Battery Capacity 4000 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, 15W Fast Charging Yes
Included Fast Charger Yes, 15.0W Fast Charger Yes
Other Battery Parameters N/A N/A
Fingerprint sensor Yes Yes
Other Features In-display fingerprint sensor; NFC; ANT+ Support; Noise Filtration; Dolby Atmos Scratch Resistant Back (Corning Gorilla Glass 5); Samsung DeX (desktop experience support); Qi Wireless charging; Bixby; NFC; ANT+ support; Stereo Speakers; Noise Filtration; Samsung Pay
2-minute Review [Positives]
  • Stunning looks, similar rainbow-like effects at the back as the Galaxy A50s when caught against the light, and a prism-like pattern that Samsung calls a “3D prism design” - it's a head-turner no doubt
  • While it supports a polycarbonate back, it still manages to look premium
  • The front looks stylish and modern too with a single punch-hole in the upper middle of the display
  • Compact and light for the display size and battery capacity, at just 172g, and 7.9mm in thickness
  • Bright, large 6.5-inches Super AMOLED panel with a full-HD+ resolution - its punchy colours make it a joy to stream content, while games also look great on the panel because of its high colour accuracy
  • There's Widevine L1 support by default, which makes streaming content in HD possible
  • Comes with Android 10 out of the box - Samsung's One UI 2 is now one of the better, more clean and streamlined Android UIs around, and is well optimised for modern large displays (like this one)
  • Samsung has also added some neat features including a Game Booster and an intuitive gesture-based navigation system
  • Decent performance with the same Exynos 9611 processor as the Galaxy A50s (similar to Qualcomm Snapdragon 660/665) - the experience is fairly smooth throughout with games like PUBG Mobile and Asphalt 9
  • Decent quad camera setup at the back - a 48MP primary sensor + 12MP wide-angle camera + 5MP macro camera + 5MP depth sensor
  • Under good light, the Galaxy A51's primary camera managed to capture detailed shots with good dynamic range - images are reasonably sharp, noise is also competently removed, colours are generally nice, and the phone strikes a good balance with saturation
  • The ultra wide-angle cam is a significant upgrade from the one on the A50s, and it offers improved sharpness and detail - dynamic range is also substantially better, making for an altogether pretty capable ultra-wide camera as far as mid-rangers go
  • Macro camera turns out quite good close ups - you can get a lot closer to your subject when using the macro camera and the sensor picks up a fair bit of detail
  • Very good portrait mode ("Live focus") - image quality is good and the depth camera helps the Galaxy A51 do a decent job of edge detection
  • The front 32MP camera is decent and produces nice colours, the detail is quite good as far as selfie cameras go - portrait selfie mode is decent too
  • Decent video recording from both primary and wide cameras with dedicated 'super steady' mode which allows you to shoot decent “action” videos (though stabilisation is not available at 4K)
  • Decent bottom-firing speaker - sufficient for personal listening
  • Solid, dependent battery life from the 4000 mah battery - will easily manage to get a day and a half's worth of regular use
  • Reasonable 15W fast charging - charges 67 percent in an hour (though, not as quick as others in this segment such as the Redmi K20 Pro)
  • Overall, a decent and likeable smartphone from Samsung - offers a polished experience, a slim and light body, solid battery life, a crisp display, and of course the Samsung brand (though, the performance at this price is a letdown)
  • Absolutely luscious design, continuing the design language that was introduced with the Galaxy S8 series (which is not a bad thing at all) - and it has some really sizzling color options in purple and blue, which really helps those supple curves stand out - the body colors look deep, rich and ever-changing thanks to the way the glossy glass catches the light - you will be hard pressed to find anything remotely as elegant, and beautiful in the Android market
  • The biggest design change is on the back, where the fingerprint reader moves below the camera module - this corrects the worst design mistake of both Galaxy S8 phones and the Note 8
  • Water resistant body
  • The tall, 18:9, minimal bezel, 6.2-inch AMOLED screen is absolutely gorgeous and even brighter than last year's (15 percent brighter, in fact) - and the sexy dual-curved design adds to the charm
  • Samsung software on top of Android adds some useful extras, extending the core functionality of Android - it is one of the better, more refined UIs in the Android world
  • Whiplash-fast performance backed by the super powerful Samsung's Exynos 9810 (similar to the Snapdragon 845 in terms of performance) - performance is top-notch as expected under all use cases
  • Terrific camera - the first to bring a mechanical dual-aperture lens from DSLRs to the much tinier mobile phone, a feature that's designed to let in more light, reduce image noise and generally make your photos a lot better
  • The image quality in well lit situations is top-notch
  • Low light performance often borders on astounding - with the amount of brightness & lack of noise you will find in the shots (thanks to the dual aperture lens) - although its not very consistent (some low light photos are oddly washed out)
  • The Galaxy S9 Plus also one-ups the excellent Galaxy S9 with a second rear camera for taking portrait photos - they come out well with a good bokeh effect
  • The super-slow motion video mode is pretty cool too, and when you frame the shot well, can give some incredible result
  • The selfie camera is good too, and has a new Selfie Focus mode, which uses software (and not a second lens) to create a depth effect with the front-facing camera, similar to the Pixel 2, or the iPhone X
  • On the whole the cameras on the Galaxy S9+/S9 compare well with the those on the other top camera phones - the Google Pixel 2, and the iPhone X - it's a toss up between these 3 - the Galaxy S9+ can produce some truly exceptional shots especially in the dark, but perhaps the iPhone X and the Pixel 2 are just a bit more consistent all round, everything considered
  • Dual-speaker system is excellent, and makes for loud, rich audio - and results in one of the best speaker experience of any smartphone, ever
  • Call quality is fantastic too, with the AKG tuning really paying off
  • Also has the good old-fashioned headphone jack! (that's missing in a lot of other flagships now)
  • Good (though not exceptional) battery life - will definitely last the work day on a single charge
  • Supports fast charging (although it's not the fastest around)
  • Supports wireless charging
  • DeX Pad support is another cool feature that enhances the Desktop Experience Samsung introduced on last year’s flagship Galaxy phones
  • On the whole, while outside of the display, the S9+ isn’t a class leader in any category, but it’s good enough in all of them that the whole package makes for a great flagship phone - it will compete with the Pixel 2/XL and the iPhone X for the title of the best smartphone - which one of these 3 you might choose will depend on what specific things you value
2-minute Review [Negatives]
  • The in-display fingerprint sensor as well as the facial recognition are on the slower side
  • The glossy body is prone to picking up fingerprints
  • There's still some bloatware pre-installed, including third-party apps and some of Samsung's own apps such as Samsung Shop (though most of them can be uninstalled)
  • At this price, the performance feels weak - there are cheaper phones that offer much better performance, like the Redmi K20 & the Realme X2
  • Low light photos out of the Galaxy A51 aren't great (from all cameras) - The output is soft and noisy, while the colours are relatively desaturated
  • Overall, while the Galaxy A51 offers good cameras, there are certainly better options available, such as the Redmi K20 Pro
  • However, as far the value for money goes, the Galaxy A51 is far behind from the competition - there are better options like the Redmi K20 Pro which gets you a flagship-grade processor, an HDR display, more premium materials, and even better cameras - in fact, for a bit less money, you could also get the Redmi K20, which is also very capable
  • Fragile glass front and back means you should buy a case day 1
  • The new face-unlock tool is not particularly secure (it might have been better for Samsung to build out a more refined version before rushing in to compete with the similar feature on the iPhone X)
  • The 3D avatar software is again not that well executed - the AR Emojis track your expressions poorly and need far more customization options
  • There’s also still no compelling use case for Bixby, Samsung's AI agent (though of course you have no compulsion to use it, and can instead keep using the Google Assistant)
  • While the camera is great generally, it can sometime make low-light photos look blurry and lack detail - even though brightness levels is excellent and noise is minimal - so its sometimes a double edged sword
  • Battery life is good, but not exceptional - some of the competition is ahead here
  • Among the two S9 variants themselves (standard, and plus), a lot of people might prefer the Galaxy S9, as it's a little easier to handle - the incremental improvements in the S9+ on the other hand (even bigger screen, more RAM, and a secondary rear camera) are arguably not that significant
  • Everything considered, S8 owners can skip the upgrade - the S9+ is excellent all-round, and incrementally better - but it's not a monumental change from the S8
  • Apart from the iPhone X and the Pixel 2/XL, the S9+ will also face tough competition now from lower priced flagships like the OnePlus 5T, which are almost as good on most of the important counts
  • The S9+ will also face direct competition from Samsung's Galaxy Note 8, which is pretty similar in many of the meaningful ways, but might come at a lower price
Expert Reviews
  1. If you absolutely must have a Samsung, this one isn't bad to spend the brand-related premium on... but there are better options available
    gsmarena.com in-depth Read Review »
  2. A nice-looking phone that offers a beautiful AMOLED display, very good battery life, and we don’t mind the plastic build at all... but the performance is underwhelming
    phonearena.com in-depth Read Review »
  3. The Galaxy A51 appeals to those looking for a polished experience, a slim and light body, solid battery life, a crisp display, and of course the Samsung brand... but a more powerful processor at this price would be preferred
    gadgets.ndtv.com in-depth Read Review »
  4. The Galaxy A51 gets few things right like the great display, versatile camera setup, sleek design, and slim form factor... but it does not pack the power, considering its price point
    fonearena.com in-depth Read Review »
  5. There’s a lot to like including the Infinity-O display, stylish design as well as good cameras.
    indianexpress.com in-depth Read Review »
  6. Samsung Galaxy A51 has great design and display, decent cameras, reliable battery and Samsung's brand trust and loyalty... but performance could have been better
    ibtimes.co.in in-depth Read Review »
  7. A very respectable mid-range mobile
    stuff.tv in-depth Read Review »
  8. If you aren't too bothered about gaming and just want a great everyday driver which is sleek and lasts through the day on a single charge, the Galaxy A51 will certainly not disappoint... but the overall performance is a bit of a letdown
    in.mashable.com in-depth Read Review »
  9. Offer a unique Samsung experience tailored to the next gen Indian buyer
    indiatoday.in in-depth Read Review »
  10. Buy it for daily tasks, and if you like the looks... ignore if you're looking for power
    firstpost.com in-depth Read Review »
  11. The Galaxy A51 is a mid-range smartphone that does a good job in all areas and takes good photos
    notebookcheck.net in-depth Read Review »
  12. This is a phone that you could flaunt
    zeebiz.com in-depth Read Review »
  13. gadgetsnow.com in-depth Read Review »
  14. deccanchronicle.com in-depth Read Review »
  15. techpp.com in-depth Read Review »
  16. trustedreviews.com hands-on Read Review »
  17. themobileindian.com hands-on Read Review »
  1. It's an awesome phone, the Samsung Galaxy S9+
    gsmarena.com in-depth Read Review »
  2. You can hardly find anything remotely as elegant, as advanced, and as polished, all in a single product, on the Android market
    phonearena.com in-depth Read Review »
  3. The Samsung phone you really want this year
    cnet.com in-depth Read Review »
  4. Thanks to blazing performance, solid cameras and long battery life, the Galaxy S9/S9+ continue to uphold the S series’ reputation for excellence
    engadget.com in-depth Read Review »
  5. Samsung’s best phone with a big screen and superb camera
    techradar.com in-depth Read Review »
  6. The best Samsung flagship ever
    beebom.com in-depth Read Review »
  7. Both Galaxy S9 and S9+ are solid, dependable workhorses with excellent displays, premium craftsmanship, and improved cameras
    gadgets.ndtv.com in-depth Read Review »
  8. The best Android smartphone available right now
    digit.in in-depth Read Review »
  9. Impressive, to say the least
    bgr.com in-depth Read Review »
  10. Samsung gets it exactly right
    mashable.com in-depth Read Review »
  11. The S9 and S9+ are probably the best Android phones for most users, and I’d have no problem recommending them to almost anyone
    androidauthority.com in-depth Read Review »
  12. techcrunch.com in-depth Read Review »
  13. theverge.com in-depth Read Review »
  14. independent.co.uk in-depth Read Review »
  15. telegraph.co.uk in-depth Read Review »
  16. fonearena.com in-depth Read Review »
  17. bgr.in in-depth Read Review »
  18. digitaltrends.com in-depth Read Review »
  19. indianexpress.com in-depth Read Review »
  20. economictimes.indiatimes.com in-depth Read Review »
  21. hindustantimes.com in-depth Read Review »
  22. alphr.com in-depth Read Review »
  23. news18.com in-depth Read Review »
  24. expertreviews.co.uk in-depth Read Review »
  25. tomsguide.com in-depth Read Review »
  26. androidcentral.com in-depth Read Review »
  27. pocketnow.com in-depth Read Review »
  28. livemint.com in-depth Read Review »
  29. zdnet.com in-depth Read Review »
  30. slashgear.com in-depth Read Review »
  31. cnbc.com in-depth Read Review »
  32. pcworld.com in-depth Read Review »
  33. gizmodo.com in-depth Read Review »
  34. androidpolice.com in-depth Read Review »
  35. recombu.com in-depth Read Review »
  36. firstpost.com in-depth Read Review »
  37. indiatoday.in in-depth Read Review »
  38. thenextweb.com in-depth Read Review »
  39. mirror.co.uk in-depth Read Review »
  40. techadvisor.co.uk in-depth Read Review »
  41. t3.com in-depth Read Review »
  42. deccanchronicle.com in-depth Read Review »
  43. wired.co.uk hands-on Read Review »
User Reviews
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  1. Flipkart4.5 2,674+ reviews »
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Official Website Official Website » Official Website »
Unofficial specs? N/A N/A
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