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Zenfone 6 ZS630KL vs Galaxy M51

Asus Zenfone 6 ZS630KL vs Samsung Galaxy M51

What Zenfone 6 ZS630KL does better (12) and where Galaxy M51 wins (8) — every spec side by side.

Asus · 2019Zenfone 6 ZS630KL

6.9Score

12 advantages≈ $540

Higher score

Samsung · 2020Galaxy M51

6.7Score

8 advantages≈ $510

4.4Display6.0

5.8Performance3.0

7.0Camera7.5

4.6Battery8.0

7.8Features5.0

Dimensions

Size comparison

Zenfone 6 ZS630KLGalaxy M51

	Zenfone 6 ZS630KL	Galaxy M51	Difference
Height	159.1 mm	163.9 mm	−4.8 mm
Width	75.4 mm	76.3 mm	−0.9 mm
Thickness	9.2 mm	9.5 mm	−0.3 mm
Weight	190 g	213 g	−23 g

Drawn to the same scale from the official dimensions (front and side).

Why is Zenfone 6 ZS630KL better than Galaxy M51?

Geekbench 6 (multi-core)10,721 vs 1,7746×
Storage (max)512 GB vs 128 GB4×
AnTuTu score361,679 vs 266,620+36%
RAM12 GB vs 8 GB+50%
Stereo speakersYes · Galaxy M51: No
CPU frequency2.84 GHz vs 2.2 GHz+29%
4K video frame rate60 fps vs 30 fps2×
Weight190 g vs 213 g+12%
Pixel density403 ppi vs 393 ppi+3%
Process7 nm vs 8 nm+14%
Loudspeaker loudness-25.7 LUFS vs -28.5 LUFS+-10%
Thickness9.2 mm vs 9.5 mm+3%

Why is Galaxy M51 better than Zenfone 6 ZS630KL?

Battery capacity5,000 mAh vs 7,000 mAh+40%
OLED panelNo · Zenfone 6 ZS630KL: Yes
Wired charging18 W vs 25 W+39%
Main camera48 MP vs 64 MP+33%
Measured brightness455 nits vs 677 nits+49%
Storage (base)64 GB vs 128 GB2×
Screen size6.4″ vs 6.7″+5%
Screen-to-body ratio83.8% vs 86.7%+3%

Specifications

Side by side

Only differences	Asus Zenfone 6 ZS630KL≈ $5406.9	Samsung Galaxy M51≈ $5106.7
Design
Weight	190 g	213 g
Thickness	9.2 mm	9.5 mm
Height	159.1 mm	163.9 mm
Width	75.4 mm	76.3 mm
Frame	Aluminium	Plastic
Back	Glass	Plastic
Glass protection	Corning Gorilla Glass 6	Corning Gorilla Glass 3+
Colours	Midnight Black, Twilight Silver	Celestial Black, Electric Blue, White
Display
Screen size	6.4″	6.7″
Panel	IPS LCD	Super AMOLED Plus
OLED panel	No	Yes
Resolution (width)	1,080 px	1,080 px
Resolution (height)	2,340 px	2,400 px
Pixel density	403 ppi	393 ppi
Refresh rate	60 Hz	60 Hz
Peak brightness	—	650 nits
Measured brightness	455 nits	677 nits
Screen-to-body ratio	83.8%	86.7%
HDR	Yes	—
Performance
Chipset	Qualcomm SM8150 Snapdragon 855	Qualcomm SDM730 Snapdragon 730G
Chip maker	Qualcomm	Qualcomm
Process	7 nm	8 nm
CPU cores	8	8
CPU frequency	2.84 GHz	2.2 GHz
GPU	Adreno 640	Adreno 618
AnTuTu score	361,679	266,620
Geekbench 6 (multi-core)	10,721	1,774
Memory
RAM	12 GB	8 GB
Storage (max)	512 GB	128 GB
Storage (base)	64 GB	128 GB
Storage type	UFS 2.1	UFS 2.1
Memory card slot	Yes	Yes
Camera
Main camera	48 MP	64 MP
Main camera aperture	f/1.8	f/1.8
Main sensor size	1/2.0"	1/1.73"
Rear cameras	2	2
Optical stabilisation	No	No
Ultra-wide camera	Yes	Yes
Telephoto camera	No	No
Max video	4K	4K
4K video frame rate	60 fps	30 fps
Selfie camera	—	32 MP
4K selfie video	Yes	Yes
Battery
Battery capacity	5,000 mAh	7,000 mAh
Battery type	Li-Po	Li-Po
Wired charging	18 W	25 W
Charged in 30 min	—	35%
Wireless charging	No	No
Connectivity
5G	—	No
eSIM	No	No
Dual SIM	Yes	Yes
Wi-Fi standard	Wi-Fi 5	Wi-Fi 5
Bluetooth	5	5
NFC	Yes	Yes
USB	USB Type-C 2.0	USB Type-C 2.0
USB version	2	2
Dual-band GPS	Yes	—
Satellite navigation	GLONASS, GALILEO, BDS, QZSS	GLONASS, GALILEO, BDS
Features
Stereo speakers	Yes	No
3.5 mm headphone jack	Yes	Yes
Loudspeaker loudness	-25.7 LUFS	-28.5 LUFS
Fingerprint sensor	Rear	Side
Sensors	Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass	Fingerprint (side-mounted), accelerometer, gyro, proximity, compass
SAR (head)	—	0.61 W/kg
Software
OS at launch	Android 9.0 (Pie)	Android 10
Platform	Android	Android
Interface	ZenUI	One UI 4.1