Our Opinion

The Samsung Galaxy A51 (6GB RAM) is a significantly better phone than the Samsung Galaxy S8 Plus (4GB RAM, 64GB), and is also much better value for money. What should you buy? Go for the Samsung Galaxy A51 (6GB RAM)!

Samsung Galaxy A51 (6GB RAM)  Samsung Galaxy S8 Plus (4GB RAM, 64GB) 
Samsung Galaxy A51 Samsung Galaxy S8
Buy Now Buy Buy
Excellence Score
38.6
32.8
Value for Money Score
63.7
27.5
Price ₹ 20,999 onwards ₹ 53,990 onwards
Launch Date (India) Jan, 2020 Apr, 2017
Expected Launch Date N/A N/A
Smartphone OS Android 10Expected update to next Android version Android 7.0 Nougat, Upgradeable to 9.0 PieLow likelihood of getting updated 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
Screen Refresh Rate 60 HzStandard 60 HzStandard
Display Features Super AMOLED Super AMOLED, 3D Touch (Home Button Only), Always-on Display, Infinity Display
Full Physical QWERTY Keypad
Processor 2.3 GHz 2.3 GHz
Processor Type Octa Core Octa Core
Processor Name Samsung Exynos 9611Ranked #38 in Mobile Processor Benchmarks Samsung Exynos 8895Ranked #30 in Mobile Processor Benchmarks
GPU Mali-G72 MP3 Mali-G71 MP20
RAM 6 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 + 12MP + 5MP + 5MP 12.0MP
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 F/1.7 Aperture, 26mm Focus Length, Phase Detection Autofocus (PDAF), Optical Image Stabilisation (OIS), 1/2.5" Sensor Size, 1.4 um Pixel Size, Geo-tagging, Simultaneous 4K Video and 9MP Image Recording, Face/Smile Detection, Auto HDR, Panorama
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/1.7 Aperture, Autofocus, Dual Video Call, Auto HDR, 1/3.6" Sensor Size, 1.22um Pixel Size, 80 Degree Wide-angle Lens
Internal Memory 128 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
Dual SIM GSM+GSM GSM+GSM (Hybrid SIM slot)
Thickness 7.9 mmMedium 8.1 mmMedium
Weight 172 gmMedium 173 gmMedium
Width 73.6 mmOk for one-handed use 73.4 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, 18W Quick Charge 3.0
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 (Corning Gorilla Glass 5) Back Panel; Bixby Voice Assistant; Samsung DeX (Desktop Experience Support); Fast Battery Charging; Ultra High-Quality Audio Playback; Wireless Charging; Secure Folder; Hardware-based Encryption; Samsung Pay; Bundled AKG Earphones; NFC; ANT+ Support; Stereo Speakers; Noise Filtration
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)
  • Incredible overall fit and finish
  • Water-resistant (IP 68 certification), and with Gorilla Glass 5 protection on both front and rear
  • Apart from fingerprint recognition, you also have iris or facial recognition options for unlocking the device - iris is blazing fast, but requires some careful alignment - facial recognition works pretty well, but does require good lighting
  • The new on-screen navigation works well and buttons can finally be re-mapped - the home button has nice haptic feedback
  • With its bold, exquisite, elongated shape, and borderless "infinity" display, the Galaxy S8 is one gorgeous piece of technology - arguably the best designed Android phone to date
  • The exceptionally bright Infinity display is gorgeous, and a chart-topper in terms of sunlight visibility - and colors are even punchier than before
  • Samsung's TouchWiz software is now more polished than ever, and gives a thoughtfully conceived software experience
  • You can also use the phone as a mobile workstation with the DeX desktop dock - creating an Android "desktop" experience - which could be pretty handy
  • The new 18.5:9 aspect ratio for the display works great for portrait gaming, browsing and multi-tasking
  • The Exynos chipset powering the phone delivers a chart-topping performance in both CPU and GPU benchmarks - the Mali-G71 MP20 GPU is impressive too - overall, the performance is class leading, and brimming with horsepower
  • The camera is state-of-the-art and pretty much the same as the already great camera on the S7, with one notable improvement - low light photography - the new Multi-Frame Image Processing delivers noticeably cleaner and sharper low light photos - overall now, this camera is right up there with the best in the business - the iPhone 7 and the Google Pixel
  • The front camera is very good too, and a major upgrade from the S7 in terms of image quality - Samsung has also included a big collection of filters, stickers and dynamic facial effects to raise your selfie game
  • Good audio quality
  • Very good battery life, a little better than the already good battery life of the Galaxy S7
  • Samsung's AI Engine Bixby is a decent add-on too, although a lot of the functionality, including voice activation will come in later
  • The S8+ is is really versatile when it comes to connectivity too with things like Gigabit LTE support, bluetooth audio streaming to two devices simultaneously, and presence of DisplayPort video output over Type-C
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
  • The new fingerprint reader position at the back will certainly raise more than a few eyebrows - it's too high up and right next to the camera - which is not the most convenient placement
  • The all-glass body is quite slippery, if you don't use a case
  • The S8+ is also generally quite tall for one handed use - reaching the notification area, for instance, can be tricky - similarly, the on-screen navigation buttons are placed pretty low relative to the overall height of the S8+ and can also be hard to reach
  • While the 18.5:9 aspect ratio is futuristic, and certainly comes in handy while browsing, and gaming, but most video/image content is still not made for such a wide screen, so will usually be wasteful of the extra space
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. Galaxy A51 packs a great screen, a handful of cameras, and a big battery... but it's not a consistent performer
    engadget.com in-depth Read Review »
  4. 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 »
  5. 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 »
  6. There’s a lot to like including the Infinity-O display, stylish design as well as good cameras.
    indianexpress.com in-depth Read Review »
  7. 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 »
  8. A very respectable mid-range mobile
    stuff.tv 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. This is a phone that you could flaunt
    zeebiz.com in-depth Read Review »
  12. 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 »
  13. 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 »
  14. A mid-ranger with plenty of polish
    pocket-lint.com in-depth Read Review »
  15. androidauthority.com in-depth Read Review »
  16. digitaltrends.com in-depth Read Review »
  17. expertreviews.co.uk in-depth Read Review »
  18. gadgetsnow.com in-depth Read Review »
  19. techpp.com in-depth Read Review »
  20. deccanchronicle.com in-depth Read Review »
  21. techadvisor.co.uk in-depth Read Review »
  22. trustedreviews.com hands-on Read Review »
  23. themobileindian.com hands-on Read Review »
  1. Lovers of big phones won't find a prettier device with a larger screen anywhere else
    cnet.com in-depth Read Review »
  2. For the most part, Samsung’s Galaxy S8/+ are slam dunks. They are brilliantly designed, brimming with horsepower and have beautiful screens.
    engadget.com in-depth Read Review »
  3. Samsung has certainly proven that it has the design and manufacturing strengths to pull off absolutely stunning devices
    gadgets.ndtv.com in-depth Read Review »
  4. gsmarena.com in-depth Read Review »
  5. phonearena.com in-depth Read Review »
  6. forbes.com in-depth Read Review »
  7. digit.in in-depth Read Review »
  8. bgr.in in-depth Read Review »
  9. androidauthority.com in-depth Read Review »
  10. trustedreviews.com in-depth Read Review »
  11. thequint.com in-depth Read Review »
  12. livemint.com in-depth Read Review »
  13. stuff.tv in-depth Read Review »
  14. zdnet.com in-depth Read Review »
  15. fonearena.com hands-on Read Review »
  16. expertreviews.co.uk hands-on 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

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