Samsung's Galaxy M series has yet another addition in the form of the Galaxy M51. The Galaxy M series has not only grown in size but also in price. With the Galaxy M51, the M series now has an offering priced above Rs. 25,000. While most manufacturers have been chasing performance, Samsung is running a different race with the Galaxy M51 — this model packs a 7,000mAh battery which is huge compared to all its competitors. Does that mean this phone is only good at one thing, though? I review the Galaxy M51 to find out.

Read complete Samsung Galaxy M51 Review

Samsung Galaxy M51 Summary

The Samsung Galaxy M51 is the first smartphone from the company to pack in a massive 7,000mAh battery. The Galaxy M51 also gets a bigger 6.7-inch SuperAMOLED display with a full-HD+ resolution. Samsung has opted for the 20:9 aspect ratio which makes the device tall and narrow. The Galaxy M51 has a hole-punch camera at the center towards the top of the display. A few users could find this distracting while watching content.

Powering the Galaxy M51 is the Qualcomm Snapdragon 730G SoC which is a first for a Galaxy M series smartphone. It is capable of loading apps quickly as well as multitasking without any issues. Samsung has launched two variants, one with 6GB of RAM and 64GB of storage and the other with 8GB RAM and 128GB of storage. The Galaxy M51 has two Nano-SIM slots and a dedicated slot for microSD. The Galaxy M51 offered good performance without any lag or stutter when we used it.

Samsung has gone with a quad-camera setup on the Galaxy M51 consisting of a 64-megapixel primary camera, a 12-megapixel ultra-wide-angle camera, a macro camera and a depth sensor. The camera clicked good photos in daylight with abundant details. Photos clicked using the wide-angle camera has distortion at the edges. Video recording tops out at 4K for the primary as well as the selfie camera but video stabilisation isn't great.

Battery performance was excellent and we could go beyond two days without needing the smartphone to be charged. The supplied charger is also quick to charge the device.

Samsung Galaxy M51 (6GB RAM, 128GB) - Electric Blue

₹ 17,499

Out of Stock
Samsung Galaxy M51 (6GB RAM, 128GB) - Celestial Black

₹ 20,990

Out of Stock
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Samsung Galaxy M51 price in India starts from ₹ 17,499. The lowest price of Samsung Galaxy M51 is ₹ 17,499 at Amazon on 18th September 2025.

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Samsung Galaxy M51 Full Specifications

General

Brand	Samsung
Model	Galaxy M51
Price in India	₹17,499
Release date	31st August 2020
Launched in India	Yes
Form factor	Touchscreen
Weight (g)	213.00
Battery capacity (mAh)	7000
Fast charging	Proprietary
Colours	Electric Blue, Celestial Black

Display

Screen size (inches)	6.70
Touchscreen	Yes
Protection type	Gorilla Glass

Hardware

Processor	octa-core
Processor make	Qualcomm Snapdragon 730G
RAM	6GB
Internal storage	128GB
Expandable storage	Yes
Expandable storage type	microSD
Expandable storage up to (GB)	512
Dedicated microSD slot	Yes

Camera

Rear camera	64-megapixel (f/1.8) + 12-megapixel (f/2.2) + 5-megapixel (f/2.4) + 5-megapixel (f/2.4)
Rear autofocus	Yes
Rear flash	Yes
Front camera	32-megapixel (f/2.2)

Software

Operating system	Android 10
Skin	One UI Core 2.1

Connectivity

Wi-Fi	Yes
Wi-Fi standards supported	802.11 a/b/g/n/ac/ax
GPS	Yes
Bluetooth	Yes, v 5.00
NFC	Yes
USB Type-C	Yes
Headphones	3.5mm
Number of SIMs	2
SIM 1
SIM Type	Nano-SIM
GSM/CDMA	GSM
3G	Yes
4G/ LTE	Yes
Supports 4G in India (Band 40)	Yes
SIM 2
SIM Type	Nano-SIM
GSM/CDMA	GSM
3G	Yes
4G/ LTE	Yes
Supports 4G in India (Band 40)	Yes

Sensors

Face unlock	Yes
Fingerprint sensor	Yes
In-Display Fingerprint Sensor	No
Compass/ Magnetometer	Yes
Proximity sensor	Yes
Accelerometer	Yes
Ambient light sensor	Yes
Gyroscope	Yes

! Error or missing information? Please let us know

Samsung Galaxy M51 Comparisons

Samsung Galaxy M51

Samsung Galaxy A51 5G

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Samsung Galaxy M51 User Review and Ratings

4.3★ 22,767 ratings &
22,756 reviews

5 ★

14,240
4 ★

4,684
3 ★

1,297
2 ★

602
1 ★

1,944

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Best Non-Chinese Phone Till Date

SAACHI ASHOK HASEJA (Oct 17, 2020) on Gadgets 360 Recommends

I've been using my Samsung Galaxy m51 since past 3 weeks and believe me its *The Best*.In daily need what we need is good battery, perfect display, very good ram optimization and a super camera.M51 has all these features, you can watch movies content on large display, what else you need from a good non Chinese brand. The Samsung UI + Snapdragon 730G provide smooth performance.! Also the fingerprint and face unlock are very fast.Sasung has provided a very good texture for the body. The phone also doesn't get hot in a while. It's 7000mAh battery make it the best phone under 30000. Features like live caption, selfie camera, video recording,blue light filter, NFC,knox security, various camera modes are the added bonus on this phone. So I definitely recommend this phone as it is THE BEST. If you want the best under 30k this is the one to buy..

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(15) (2) Reply
Best mobile of India

निशांत सिंह (Sep 17, 2020) on Gadgets 360 Recommends

BEst mobile phone in india

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(20) (10) Reply
Failure Model M51s

Balakrishnan (Jan 21, 2021) on Gadgets 360

Pros: BATTERY life and camera, Cons: very poor and cheap build quality, most of companies have thought they can put make in India with cheap build quality, because of massive population to buy for there attractive offers, I have 4 mobiles of Samsung and build quality good this is my 5th mobile I got, its got bend even we keep it in pant pocket, while I bought in samsung online I have doubt it build quality cheaper, but the same happened with in 2 months speaker not working, charging not working and also some dotted patches in screen. If we approached service center they trying to hide the reality. I approached for the Speaker change but they forced me to change along with screen worth Rs8000+GST instead of simple Rs190 speaker change. Please think before purchasing it, most of online vendor like Amazon refuse me to add review, so don't belive ratings of online shoppers, they have collaborative cheaters

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(5) (3) Reply
Highly Recommended

Ammit P Chawda (Aug 20, 2022) on Gadgets 360 Recommends

Used this phone between 2021 to 2022, This phone is recommended for the following reasons. 1) Mammoth Battery. 2) Great Cameras. 3) Great Display 4) Amazing specification at the price. The only thing missing was the plastic back that it came with.Amazing phone nonetheless.

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M51 after 27 months

Robert Devasia (Jul 26, 2023) on Gadgets 360

Wasn't charging properly so had to take it to the service center. They say it could be an internal issue but the phone could die if they opened it. Also the battery has started bulging, for which there could be many reasons. Strange after 2 years of usage.

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