Asus Zenfone 7 (ZS670KS 128GB/8GB) vs Samsung Galaxy A51 (SM-A515F/DSN)
Side by side comparison between Asus Zenfone 7 vs Samsung Galaxy A51 phones, differences, pros, cons and full specifications. What's the better?
,
6.67"
AMOLED
AMOLED
1080x2400
64
MP
MP
64mp
8GB
RAM
RAM
Octa-core
5000
mAh
mAh
(Non removable)
vs
6.5"
AMOLED
AMOLED
1080x2400
48
MP
MP
32mp
6GB
RAM
RAM
Octa-core
4000
mAh
mAh
(Non removable)
What's the better phone? Asus Zenfone 7 (ZS670KS 128GB/8GB)
The phonemore's choice is much more technical than personal. Therefore, you shouldn't only consider this. Our goal is to help you, but what's important to us may not be important to you. You decide which one is the best! Comment!
23 Common items in both devices |
128GB (104GB available) / 128GB (107GB available) |
Until 1TB microSD, microSDXC |
Super AMOLED |
16 million |
1080x2400 pixels |
PDAF: phase detection autofocus |
EIS: Digital stabilization |
+16 specs and more in the table below |
Check the comparison table below for more items that are not evaluated in comparison score above.
Highlight differences Clear highlight📱 Model features | ||
Asus Zenfone 7 (ZS670KS 128GB/8GB) | Galaxy A51 (SM-A515F/DSN) | |
Model | Zenfone 7 (ZS670KS 128GB/8GB) | Galaxy A51 (SM-A515F/DSN) |
Other model names | Asus Zenfone 7 ZS670KS, ASUS_I002D, I002D (8GB RAM) | Samsung Galaxy A51 SM-A515F/DSN |
Country or region available | (Global, International) | (Europe), (Global, International), United Arab Emirates, Pakistan, Taiwan |
Brand | Asus | Samsung |
Release date | 9/1/2020, Announced: 8/26/2020 | 12/16/2019, Announced: 12/12/2019 |
Depth | 9.6 millimeters (0.38 inches) | 7.9 millimeters (0.31 inches) |
Size (width x height) | 77.3 x 165.1 millimeters (3.04 x 6.5 in) | 73.6 x 158.5 millimeters (2.9 x 6.24 in) |
Weight | 235 grams (8.23 ounces) | 172 grams (6.02 ounces) |
Build, materials | Aluminum frame, glass front/back | Plastic body, glass front |
Protection against water and others | Not supported | Not supported |
📲 Display | ||
Asus Zenfone 7 (ZS670KS 128GB/8GB) | Galaxy A51 (SM-A515F/DSN) | |
Display type | Super AMOLED | Super AMOLED |
Screen size | 6.67" inches | 6.5" inches |
Screen-to-body ratio | ~84.2% (screen-to-body ratio) | ~87.4% (screen-to-body ratio) |
Display resolution | 1080x2400 pixels (20:9) | 1080x2400 pixels (20:9) |
Touchscreen | Capacitive Multitouch 10-points | Capacitive Multitouch |
Pixel density (dot pitch) | 395 PPI | 405 PPI |
Colors | 16 million | 16 million |
Scratch-resistant glass | Gorilla Glass 6 | Gorilla Glass 3 |
Refresh rate | 90Hz | 60Hz |
Display features | 700nits[peak] HDR10+ | Always-On Display |
🤖 Operating System | ||
Asus Zenfone 7 (ZS670KS 128GB/8GB) | Galaxy A51 (SM-A515F/DSN) | |
System version | Android 10 | Android 10 |
Firmware update | Android 12 | Android 13 |
User Interface | ZenUI 8 | One UI 2.5 / 3.1 / 4.1 / 5.0 |
⚙️ Processor | ||
Asus Zenfone 7 (ZS670KS 128GB/8GB) | Galaxy A51 (SM-A515F/DSN) | |
Chipset | 64bit: Qualcomm Snapdragon 865 (SM8250) (7nm) | 64bit: Samsung Exynos 9611 (10nm) |
CPU | Octa-core, 3 processors: 1x 2.84GHz Kryo 585 (Single-core) 3x 2.42GHz Kryo 585 (Triple-core) 4x 1.8GHz Kryo 585 (Quad-core) | Octa-core, 2 processors: 4x 2.3GHz ARM Cortex-A73 (Quad-core) 4x 1.7GHz ARM Cortex-A53 (Quad-core) |
GPU graphical controller | Qualcomm Adreno 650 (250-587MHz) | ARM Mali-G72 MP3 (850MHz) |
Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
Asus Zenfone 7 (ZS670KS 128GB/8GB) | Galaxy A51 (SM-A515F/DSN) | |
RAM memory | 8GB LPDDR5 | 6GB LPDDR4X |
Internal storage | 128GB (104GB available) UFS 3.1 | 128GB (107GB available) eMMC 5.1 |
External storage | Until 1TB microSD, microSDXC (dedicated slot) | Until 1TB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
Asus Zenfone 7 (ZS670KS 128GB/8GB) | Galaxy A51 (SM-A515F/DSN) | |
Dual-SIM | Dual-SIM Standby - Call active on one sim card (dedicated slot) | Dual-SIM Standby - Call active on one sim card (dedicated slot) |
SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) | 2 slots (Dual-SIM) nano-SIM (4FF) |
Maximum Download / Upload | 2000/1024 Mbps | 600/150 Mbps |
Network technology | 2G, 3G, 4G, 5G | 2G, 3G, 4G |
Frequency, bands | Expand band details Collapse details | |
GSM MHz band | Quad-Band 850/900/1800/1900 | Quad-Band 850/900/1800/1900 |
Primary 2G network | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
Primary 3G network | UMTS 800/850/900/1700/1900/2100 | UMTS 850/900/1700/1900/2100 |
Primary 4G network | LTE Cat19 (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 29) TD-LTE (38, 39, 40, 41) VoLTE | LTE Cat12/13 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 66) TD-LTE (38, 40, 41) VoLTE |
Primary 5G network | SA/NSA (1, 2, 3, 5, 7, 8, 12, 20, 28, 38, 77, 78) | Not supported |
Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A |
Secondary 2G network | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
Secondary 3G network | UMTS 800/850/900/1700/1900/2100 | Not supported |
Secondary 4G network | LTE Cat19 (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 29) TD-LTE (38, 39, 40, 41) VoLTE | Not supported |
Secondary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A | GPRS, EDGE |
📷 Camera | ||
Asus Zenfone 7 (ZS670KS 128GB/8GB) | Galaxy A51 (SM-A515F/DSN) | |
Back camera (main camera) | (triple camera) 64 megapixels 12MP ultrawide f/2.2113°17mm1/2.55"1.4µmPDAF 8MP telephoto f/2.480mmPDAF3x-optical-zoom | (quad camera) 48 megapixels 12MP ultrawide f/2.213mm1.12µm 5MP telephoto f/2.440mm 5MP depth f/2.21/5.0"1.12µm |
Main camera resolution | 10120x6328 pixels | 8000x6000 pixels |
Video recording (primary) | 8K UHD (7680x4320) 30 fps | 4K UHD (3840x2160) 30 fps |
Flash | Dual-LED flash | LED flash |
Focal aperture | f/1.8 (aperture) | f/2.0 (aperture) |
Focal length | 26mm lens | 26mm lens |
Sensor size | 1/1.72" inches | 1/2" inches |
Pixel size | 0.8µm pixel | 0.8µm pixel |
Autofocus | PDAF: phase detection autofocus | PDAF: phase detection autofocus |
Touch focus | Supported | Supported |
Image stabilization | EIS: Digital stabilization | EIS: Digital stabilization |
Zoom | Digital and optical zoom | Only digital zoom |
Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
BSI sensor | Supported | Not supported |
HDR | HDR photo/video on both cameras | HDR photo on both cameras |
Camera extras | 4K@120fps 1080p@240fps 720p@480fps | feature not registered |
📸 Front camera | ||
Asus Zenfone 7 (ZS670KS 128GB/8GB) | Galaxy A51 (SM-A515F/DSN) | |
Front camera (secondary) | Uses the back motorized camera (flip-up/rotating) | 32 megapixels |
Front camera resolution | 10120x6328 pixels | 6528x4896 pixels |
Video recording (secondary) | 8K UHD (7680x4320) | 4K UHD (3840x2160) |
Front flash | Dual-LED flash | Not supported |
Focal aperture | f/1.8 (aperture) | f/2.2 (aperture) |
Focal length | 26mm lens | 26mm lens |
Sensor size | 1/1.72" inches | 1/2.8" inches |
Pixel size | 0.8µm pixel | 0.8µm pixel |
🔉 Sound and multimedia | ||
Asus Zenfone 7 (ZS670KS 128GB/8GB) | Galaxy A51 (SM-A515F/DSN) | |
Loudspeaker | Stereo sound 24-bit/192kHz | Supported |
Active noise cancellation | 2 microphones or more | 2 microphones or more |
Radio | Not supported | FM (RDS) |
TV | Not supported | Not supported |
Video formats | MP4, H.265, H.264, H.263, XviD, MKV | MP4, H.265, H.264, H.263, XviD, MKV |
Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
Asus Zenfone 7 (ZS670KS 128GB/8GB) | Galaxy A51 (SM-A515F/DSN) | |
USB | USB 2.0 Type-C, USB OTG On-The-Go | USB 2.0 Type-C, USB OTG On-The-Go |
Audio output | Type-C jack with 3.5mm jack adapter | 3.5mm jack |
TV output | USB Type-C (reversible) | Not supported |
Bluetooth | 5.1 + A2DP/LE | 5.0 + A2DP/LE |
WiFi | 802.11 a/b/g/n/ac/ax [wifi6] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot |
DLNA | Not supported | Not supported |
GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS, NavIC | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou |
NFC | Supported | Supported |
Infrared port | Not supported | Not supported |
🧭 Sensors | ||
Asus Zenfone 7 (ZS670KS 128GB/8GB) | Galaxy A51 (SM-A515F/DSN) | |
Sensors | Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (side-mounted) Gyroscope Hall effect Proximity sensor | Accelerometer Ambient light sensor ANT+ Compass Face unlock Fingerprint sensor (under display) Gyroscope Hall effect Virtual proximity sensor |
Vibrating alert | Supported | Supported |
🔋 Battery | ||
Asus Zenfone 7 (ZS670KS 128GB/8GB) | Galaxy A51 (SM-A515F/DSN) | |
Battery type | LiPo: li-ion polymer (Non removable) | LiPo: li-ion polymer (Non removable) |
Battery capacity | 5000 mAh | 4000 mAh |
Charger, watts | 30W Wired fast charging Reverse charging by cable Quick Charge 4 USB Power Delivery 3.0 | 15W Wired fast charging |
Inductive / wireless charging | Not supported | Not supported |
Talk time autonomy | feature not registered | feature not registered |
Standby | feature not registered | feature not registered |
➕ Other features | ||
Asus Zenfone 7 (ZS670KS 128GB/8GB) | Galaxy A51 (SM-A515F/DSN) | |
Call control | Voice dialing, Voice recorder, Voice commands | Voice dialing, Voice recorder |
Messaging | SMS (T9), MMS, E-mail, Push mail | SMS (T9), MMS, E-mail, Push mail |
Hands-free calling | Supported | Supported |
Video calling | Supported | Supported |
Ringtones | Polyphonic and customized | Polyphonic and customized |
Web browser | HTML, XHTML, HTML5 | HTML, XHTML, HTML5 |
Antenna | Internal antenna | Internal antenna |
Qwerty physical keyboard | Not supported | Not supported |
Miscellaneous | • Colors: Aurora Black, Pastel White • Silicon case included | • Colors: Prism, Crush Black, White, Blue, Pink |
☢️ Radiation rate | ||
Asus Zenfone 7 (ZS670KS 128GB/8GB) | Galaxy A51 (SM-A515F/DSN) | |
SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
SAR 2W/kg (Europe, UK, etc.) | feature not registered | 0.369W/kg (head), 1.59W/kg (body) |