Our Opinion

The Samsung Galaxy M51 (8GB RAM) is a slightly better phone than the Samsung Galaxy S10 128GB, and is also much better value for money. What should you buy? Go for the Samsung Galaxy M51 (8GB RAM)!

Samsung Galaxy M51 (8GB RAM)  Samsung Galaxy S10 128GB 
Samsung Galaxy M51 Samsung Galaxy S10
Buy Now Buy Buy
Excellence Score
64.9
63.4
Value for Money Score
85.7
50.6
Price ₹ 21,999 onwards ₹ 50,999 onwards
Launch Date (India) Sep, 2020 Feb, 2019
Expected Launch Date N/A N/A
Smartphone OS Android 10Expected update to next Android version Android 9.0 Pie, Upgradeable to Android 10Expected update to next Android version
Touchscreen Yes (Capacitive) Yes (Capacitive)
Screen Size 6.7 inches 6.1 inches
Screen Resolution 1080x2340 pixels (~ 385 pixels per inch) 1440x3040 pixels (~ 551 pixels per inch)
Tall Aspect Ratio / Minimal Bezels Yes Yes
Scratch Resistant Display Yes, Corning Gorilla Glass 3 Yes, Corning Gorilla Glass 6
Display Type AMOLED AMOLED
Screen Refresh Rate 60 HzStandard 60 HzStandard
Display Features N/A Dynamic AMOLED, HDR10, Always-on Display
Full Physical QWERTY Keypad
Processor 2.2 GHz 2.7 GHz
Processor Type Octa Core Octa Core
Processor Name Qualcomm Snapdragon 730GRanked #20 in Mobile Processor Benchmarks Exynos 9820 OctaRanked #11 in Mobile Processor Benchmarks
GPU Adreno 618 Mali-G76 MP12
RAM 8 GB 8 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 64MP + 12MP + 5MP + 5MP 16MP + 12MP + 12MP
Camera Auto-Focus Yes Yes
Camera Flash Yes Yes
HD Video Recording Yes (4K) Yes (4K)
Other Camera Features 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 12MP: F/1.5-2.4 Aperture; 26mm Focal Length (wide); 1/2.55" Sensor Size; 1.4um Pixel Size; Dual Pixel PDAF; OIS, 12MP: F/2.4 Aperture; 52mm Focal Length (Telephoto); 1/3.6" Sensor; 1.0um Pixel Size; Autofocus; OIS; 2x Optical Zoom, 16MP: F/2.2 Aperture; 12mm Focal Length (Ultrawide), Auto-HDR, Panorama, Slo-mo Video ([email protected]; [email protected]; [email protected]), HDR, Dual-video Rec.
Secondary Camera 32MP 10MP
Secondary Camera Features f/2.0 aperture, 26mm Focal Length, 1/2.8" Sensor Size, 0.8um Pixel Size, HDR F/1.9 Aperture, Dual Pixel PDAF, Dual Video Call, Auto-HDR, 4K Video Rec.
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
Dual SIM GSM+GSM GSM+GSM (Hybrid SIM slot)
Thickness 9.5 mmThick 7.8 mmMedium
Weight 213 gmHeavy 157 gmMedium
Width N/A 70.4 mmComfortable 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 7000 mAh 3400 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, 25W Fast Charging Yes
Included Fast Charger Yes, 25.0W Fast Charger Yes, 15.0W Fast Charger
Other Battery Parameters N/A N/A
Fingerprint sensor Yes Yes
Other Features UFS 2.1 Storage; NFC; FM Recording; Noise Filtration; Dolby Atmos In-display Supersonic Fingerprint Sensor; Scratch Resistant Back (Corning Gorilla Glass 6); Samsung DeX (desktop experience support); Qi Fast Wireless charging; Bixby; Samsung Pay; Reverse Wireless charging; NFC; ANT+ Support; Stereo Speakers; Noise Filtration; Dolby Atmos; AKG sound
2-minute Review [Positives]
  • Sleek, classy design - the Galaxy M51 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, similar to the Galaxy M31s
  • The phone feels solid in the hand - the 'glasstic back' offers better grip, and it is not as slippery as other phones with a glass back
  • The side-mounted fingerprint scanner is quick to unlock the device
  • Punchy, vivid and massive 6.7-inch FHD+ Super AMOLED display - the display is one of the best in class panels with great colour reproduction and viewing angles
  • 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 M51's AMOLED display), and Always On Display option
  • Very good performance from the Snapdragon 730G - the chipset and Samsung’s OneUI optimization could take anything that you throw at it, switching across apps, moving across the UI, multitasking, and opening multiple Chrome tabs, social media is a breeze - heavy games like Call of Duty run smoothly without any lag
  • Samsung has fixed the only major drawback it had in other M-series phones with average performance, and this time the Galaxy M51 has no issue taking on the competition in performance
  • Good quad rear camera setup - 64MP main sensor + 12MP wide-angle lens + 5MP depth sensor + a 5MP macro camera - the Galaxy M51 carries the same camera setup as seen on the Galaxy M31s
  • 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 mid-range 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 M51s are good for the price bracket, even though they are not the best
  • Mammoth, out of this world 7000mAh battery delivers an incredible 2-3 days of heavy usage easily, making the Galaxy M51 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
  • The Galaxy M51 brings very good value as its big battery, powerful cameras, and expansive display all help make a solid argument in the device's favour - the phone's Snapdragon 730G SoC also ensures that M51 offers enough in terms of raw power to help it tackle most things you throw at it
  • Absolutely gorgeous, slick design, which is truly all-screen, and zero bezels - with a punch hole for the front camera
  • Top quality build
  • Feels great in the hand thanks to curved sides on the front and back
  • More compact and easier to handle than the Galaxy S10+
  • The new in-display ultrasonic fingerprint sensor also works well, and even with wet/greasy fingers - plus it's more secure than the 2D optical sensor on the likes of the OnePlus 6T, since it creates a 3D map of your finger
  • There is also lightning fast face unlock
  • Brilliant, killer display - the new quad HD+ Dynamic AMOLED display on the Galaxy S10 Plus is Samsung’s best display yet and arguably the best smartphone display yet, and absolutely immersive, with its all-screen design
  • Dynamic Tone Mapping delivers enhanced brightness and a wider color range and Samsung has worked to reduce blue light emission, which can be harmful for your eyes
  • The Galaxy S10’s panel also gets plenty bright at 625 nits of peak brightness
  • The OneUI software on the Galaxy S10 is slick and streamlined as promised, and fairly easy to use - it's one of the better Android UIs you will come across - in fact, it is arguably the best custom Android skin after Oxygen OS, and that’s a huge deal for the Samsung brand
  • With the power beast Exynos 9820 chip inside, the Galaxy S10 is simply the fastest Android phone yet - and only a shade behind Apple's iPhone XR/XS - it will steamroll through anything you throw at it - and gameplay in even the most complex games is smooth like butter
  • There is also a new set of features Samsung calls “Intelligent Performance” - using artificial intelligence, the Galaxy S10 lineup can automatically and continuously optimize battery, CPU, RAM, and even device temperature based on what you’re doing with the phone at any given time - Intelligent Performance also learns when you use certain apps over time, and it can pre-load them in the background based on time and location - this way, your most frequently used apps are lightning-fast to launch
  • Continuing Samsung's tradition of including some excellent cameras on its flagships, the 4 cameras on the S10 (3 rear + 1 front) pack quite some punch are are easily among the best on any phone available currently - taking the top spots along with the Pixel 3/XL and the iPhone XS/Max
  • The three cameras in the rear include a 12-MP dual-pixel main shooter with a variable aperture (f/1.5, f/2.4), a 12-MP telephoto lens (f/2.4) with a 2x optical zoom and an ultra-wide 16-MP camera (f/2.2) that gives you a 123-degree view
  • The ultra-wide angle lens on the S10 Plus can produce dramatic-looking photos, giving you a more captivating view of almost any scene
  • If you like portraits, you’ll like the Live Focus effects Samsung has added to the mix - you can choose from Blur, Spin, Zoom and Color point (which puts the main subject in color and the background in black and white) - you can also apply these effects to portraits or selfies after you shoot
  • Low light photography is pretty strong too, though not quite to the level of the Pixel 3
  • The front camera is pretty good too (though portraits aren't as good as on the S10+)
  • Video recording is top-notch too, especially with the new 'Super Steady' mode - that produces the kind of smooth tracking shots you’d see in a movie
  • Includes a headphone jack, something that's not that easy to find among flagships today
  • Has pretty powerful speakers (though they are not up to the level of the the stereo sound from the iPhone XS Max which delivers more robust bass and richer audio overall)
  • Good battery life with a 3400mAh battery, an optimized processor, and AI based 'Adaptive Battery' chops
  • The handy PowerShare feature lets you use the back of the S10 to wirelessly charge other phones and gadgets that use the Qi standard (including the iPhones XS, and Galaxy Buds)
  • The Galaxy S10 is easily one of the best Android phones money can buy, with a slick design, a gorgeous display, blazing fast performance, an ultrasonic fingerprint sensor, further improved cameras and good battery life
2-minute Review [Negatives]
  • The Galaxy M51 feels hefty at 9.5mm thickness and 213g weight - it is difficult to use for a longer duration for calls, streaming, or even gaming
  • The back of the Galaxy M51 is a fingerprint magnet - it can also get scratched easily since it is plastic
  • The display lags with a 60 Hz display, where competing phones like OnePlus Nord offer higher 90 Hz refresh rate
  • There's still great competition at this price and the OnePlus Nord has a lot up its sleeve with a newer processor, higher refresh rate display, and a best in class software
  • The punch hole for the front camera can be a bit distracting at times - especially when you’re using an app with a white background like Gmail - whether you prefer this approach to a 'full screen' device or the water-drop notch approach may be down to personal preference - while notches are usually larger, they still maintain the symmetry of the phone - so it's a bit of a toss-up - though, just like a notch, this is something you quickly get used to, and ultimately stop even noticing
  • Overall, while the cameras on the Galaxy S10 are right up there with the very best, they are still a shade behind the Pixel 3 and the Huawei Mate 20 Pro, in terms of low-light photography
  • While fast charging is of course supported, the charging speeds over the Adaptive Fast Charging protocol aren't all that impressive for a 2019 flagship - it will take you 30 minutes to charge the phone to about 36% with the included 15W charger in the box - it's a decent speed but the fast charging standards of the likes of OnePlus, Oppo, and Vivo are significantly better
  • There is still strong competition though - while the S10 is a great, powerful all-rounder, if you are looking for the best camera, you should consider the Pixel 3, and if you are looking for even more powerful performance, brighter display, or prefer the iOS ecosystem, you should look at the iPhone XS
Expert Reviews
  1. The Samsung Galaxy M51 packs in a massive battery, Super AMOLED panel and Snapdragon chipset, although the stand out feature here is the battery, it won't disappoint you in any aspect
    techradar.com in-depth Read Review »
  2. The Galaxy M51 has grabbed a lot of attention because of its big 7,000mAh battery, and it really does deliver very good battery life
    gadgets.ndtv.com in-depth Read Review »
  3. Monstrous battery life, great display
    bgr.in in-depth Read Review »
  4. A satisfying phone
    indianexpress.com in-depth Read Review »
  5. The massive battery on the Galaxy M51 is a sure-shot advantage and other great features include a beautiful display, modern design, reliable cameras and decent performance
    ibtimes.co.in in-depth Read Review »
  6. Its got all the battery you need
    indiatoday.in in-depth Read Review »
  7. An all-round mid-range phone that M-series needed
    business-standard.com in-depth Read Review »
  8. gsmarena.com in-depth Read Review »
  9. fonearena.com in-depth Read Review »
  10. economictimes.indiatimes.com in-depth Read Review »
  11. news18.com in-depth Read Review »
  12. themobileindian.com in-depth Read Review »
  13. firstpost.com in-depth Read Review »
  14. zeebiz.com in-depth Read Review »
  15. techpp.com in-depth Read Review »
  16. financialexpress.com hands-on Read Review »
  1. Superb phone...easy to recommend
    gsmarena.com in-depth Read Review »
  2. All the S10 Plus power in a smaller package
    cnet.com in-depth Read Review »
  3. Samsung's big 2019 flagship Android phones deliver in more ways than you'd think
    wired.com in-depth Read Review »
  4. If you are looking for a smartphone that does it all and fits comfortably in the palm of your hand, your search ends here
    gadgets.ndtv.com in-depth Read Review »
  5. Samsung's Galaxy S10 phones are sleek, gorgeous, powerful, cutting-edge devices
    forbes.com in-depth Read Review »
  6. As good as the Galaxy S10+ on most counts..if you’re looking for a flagship smartphone that scores high on performance, photography, and aesthetics, the Samsung Galaxy S10 is perfect for you
    digit.in in-depth Read Review »
  7. The Galaxy 10 isn’t just a big step forward for Samsung, it’s a giant leap ahead of the competition
    bgr.com in-depth Read Review »
  8. Perfect premium smartphone
    bgr.in in-depth Read Review »
  9. Let's be clear, the Galaxy S10 is a killer phone that delivers near-perfect performance across the board
    androidauthority.com in-depth Read Review »
  10. A great phone
    digitaltrends.com in-depth Read Review »
  11. Samsung’s latest flagship is a worthy iPhone XS killer
    expertreviews.co.uk in-depth Read Review »
  12. We have a new king
    slashgear.com in-depth Read Review »
  13. An amazing phone
    techadvisor.co.uk in-depth Read Review »
  14. The Galaxy S10 gets just about everything right, and is a stunning all-round package
    t3.com in-depth Read Review »
  15. phonearena.com in-depth Read Review »
  16. trustedreviews.com in-depth Read Review »
  17. tomsguide.com in-depth Read Review »
  18. stuff.tv in-depth Read Review »
  19. arstechnica.com hands-on Read Review »
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Official Website Official Website » Official Website »
Unofficial specs? N/A N/A
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