Asus Zenfone 6 (ZS630KL 64GB) vs Samsung Galaxy A21s (SM-A217F/DSN 64GB/6GB)
Side by side comparison between Asus Zenfone 6 vs Samsung Galaxy A21s phones, differences, pros, cons and full specifications. What's the better?
,
6.4"
IPS
IPS
1080x2340
48
MP
MP
48mp
6GB
RAM
RAM
Octa-core
5000
mAh
mAh
(Non removable)
vs
6.5"
PLS
PLS
720x1600
48
MP
MP
13mp
6GB
RAM
RAM
Octa-core
5000
mAh
mAh
(Non removable)
What's the better phone? Asus Zenfone 6 (ZS630KL 64GB)
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!
18 Advantages 
3 Advantages | 30 Common items in both devices |
| 6GB LPDDR4X |
| 64GB (50GB available) / 64GB (48GB available) |
| Until 1TB microSD, microSDXC / Until 512GB microSD, microSDXC |
| 60Hz |
| 16 million |
| Only digital zoom |
| LDAF/PDAF: laser/phase detection autofocus / PDAF: phase detection autofocus |
| +23 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 6 (ZS630KL 64GB) | Galaxy A21s (SM-A217F/DSN 64GB/6GB) | |
| Model | Zenfone 6 (ZS630KL 64GB) | Galaxy A21s (SM-A217F/DSN 64GB/6GB) |
| Other model names | Asus Zenfone 6 2019 (6GB RAM) ASUS_I01WD, ZS630KL, I01WD | Galaxy A21s SM-A217F/Dual-Sim NFC (64GB + 6GB RAM) |
| Country or region available |  (Global, International) |  Hong Kong |
| Brand | Asus | Samsung |
| Release date | 5/16/2019 | 6/2/2020, Announced: 5/15/2020 |
| Depth | 9.2 millimeters (0.36 inches) | 8.9 millimeters (0.35 inches) |
| Size (width x height) | 75.4 x 159.1 millimeters (2.97 x 6.26 in) | 75.3 x 163.7 millimeters (2.96 x 6.44 in) |
| Weight | 190 grams (6.65 ounces) | 192 grams (6.72 ounces) |
| Build, materials | Aluminum frame, glass front/back | Plastic body, glass front |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Asus Zenfone 6 (ZS630KL 64GB) | Galaxy A21s (SM-A217F/DSN 64GB/6GB) | |
| Display type | TFT IPS LCD | TFT PLS |
| Screen size | 6.4" inches | 6.5" inches |
| Screen-to-body ratio | ~83.8% (screen-to-body ratio) | ~82.8% (screen-to-body ratio) |
| Display resolution | 1080x2340 pixels (19.5:9) | 720x1600 pixels (20:9) |
| Touchscreen | Capacitive Multitouch 10-points | Capacitive Multitouch |
| Pixel density (dot pitch) | 403 PPI | 270 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass 6 | Not supported |
| Refresh rate | 60Hz | 60Hz |
| Display features | 600nits[peak] HDR10 | Not supported |
🤖 Operating System | ||
| Asus Zenfone 6 (ZS630KL 64GB) | Galaxy A21s (SM-A217F/DSN 64GB/6GB) | |
| System version | Android 9.0 Pie | Android 10 |
| Firmware update | feature not registered | Android 12 |
| User Interface | feature not registered | One UI 2.0 / 3.1 / 4.1 |
⚙️ Processor | ||
| Asus Zenfone 6 (ZS630KL 64GB) | Galaxy A21s (SM-A217F/DSN 64GB/6GB) | |
| Chipset | 64bit: Qualcomm Snapdragon 855 (SM8150) (7nm) | 64bit: Samsung Exynos 850 (8nm) |
| CPU | Octa-core, 3 processors: 1x 2.84GHz Kryo 485 (Single-core) 3x 2.42GHz Kryo 485 (Triple-core) 4x 1.78GHz Kryo 485 (Quad-core) | Octa-core, 1 processor: 8x 2GHz ARM Cortex-A55 (Octa-core) |
| GPU graphical controller | Qualcomm Adreno 640 (585MHz) | ARM Mali-G52 MP1 |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Asus Zenfone 6 (ZS630KL 64GB) | Galaxy A21s (SM-A217F/DSN 64GB/6GB) | |
| RAM memory | 6GB LPDDR4X | 6GB LPDDR4X |
| Internal storage | 64GB (50GB available) UFS 2.1 | 64GB (48GB available) eMMC 5.1 |
| External storage | Until 1TB microSD, microSDXC (dedicated slot) | Until 512GB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| Asus Zenfone 6 (ZS630KL 64GB) | Galaxy A21s (SM-A217F/DSN 64GB/6GB) | |
| 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 | 1200/150 Mbps | 300/150 Mbps |
| Network technology | 2G, 3G, 4G | 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 | A version: UMTS 850/900/1900/2100 B, C version: UMTS 800/850/900/1700/1900/2100 | UMTS 850/900/1900/2100 |
| Primary 4G network | LTE Cat18 VoLTE A version: LTE (Bands 1, 2, 3, 5, 7, 8, 20, 28) TD-LTE (Bands 38, 40, 41) B version: LTE (Bands 1, 2, 3, 4, 5, 7, 8, 18, 19, 26, 28) TD-LTE (Bands 38, 39, 41, 46) C version: LTE (Bands 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 26, 28) TD-LTE (Bands 38, 39, 41, 46) | LTE Cat7/13 (1, 2, 3, 5, 7, 8, 20, 28) TD-LTE (38, 40, 41) |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A | 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 | Not supported | UMTS 850/900/1900/2100 |
| Secondary 4G network | Not supported | LTE Cat7/13 (1, 2, 3, 5, 7, 8, 20, 28) TD-LTE (38, 40, 41) |
| Secondary data network | GPRS, EDGE | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A |
📷 Camera | ||
| Asus Zenfone 6 (ZS630KL 64GB) | Galaxy A21s (SM-A217F/DSN 64GB/6GB) | |
| Back camera (main camera) | (dual camera) 48 megapixels 13MP ultrawide f/2.411mm | (quad camera) 48 megapixels 8MP ultrawide f/2.21/4"1.12µm123° 2MP macro f/2.4 2MP depth f/2.4 |
| Main camera resolution | 8000x6000 pixels | 8000x6000 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 60 fps | Full HD (1920x1080) 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 | 1/2" inches | 1/2" inches |
| Pixel size | 0.8µm pixel | 0.8µm pixel |
| Autofocus | LDAF/PDAF: laser/phase detection autofocus | PDAF: phase detection autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | EIS: Digital stabilization | EIS: Digital stabilization |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
| BSI sensor | Not supported | Not supported |
| HDR | HDR photo on both cameras | HDR photo on both cameras |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Asus Zenfone 6 (ZS630KL 64GB) | Galaxy A21s (SM-A217F/DSN 64GB/6GB) | |
| Front camera (secondary) | Uses the back motorized camera (flip-up/rotating) | 13 megapixels |
| Front camera resolution | 8000x6000 pixels | 4128x3096 pixels |
| Video recording (secondary) | 4K UHD (3840x2160) | Full HD (1920x1080) |
| Front flash | Dual-LED flash | Not supported |
| Focal aperture | f/1.8 (aperture) | f/2.2 (aperture) |
| Focal length | 26mm lens | feature not registered |
| Sensor size | 1/2" inches | 1/3.1" inches |
| Pixel size | 0.8µm pixel | 1.12µm pixel |
🔉 Sound and multimedia | ||
| Asus Zenfone 6 (ZS630KL 64GB) | Galaxy A21s (SM-A217F/DSN 64GB/6GB) | |
| Loudspeaker | Supported | Mono sound (not stereo) |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | FM | FM |
| 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 6 (ZS630KL 64GB) | Galaxy A21s (SM-A217F/DSN 64GB/6GB) | |
| USB | USB 2.0 Type-C reversible connector | USB 2.0 Type-C reversible connector |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | Not supported |
| Bluetooth | 5.0 + A2DP/LE | 5.0 + A2DP/LE |
| WiFi | 802.11 a/b/g/n/ac [wifi5] (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 | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou |
| NFC | Supported | Supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Asus Zenfone 6 (ZS630KL 64GB) | Galaxy A21s (SM-A217F/DSN 64GB/6GB) | |
| Sensors | Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (rear-mounted) Gyroscope Hall effect Proximity sensor | Accelerometer Compass Face unlock Fingerprint sensor (rear-mounted) Gyroscope Proximity sensor Virtual ambient light sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Asus Zenfone 6 (ZS630KL 64GB) | Galaxy A21s (SM-A217F/DSN 64GB/6GB) | |
| Battery type | LiPo: li-ion polymer (Non removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 5000 mAh | 5000 mAh |
| Charger, watts | 18W (9V/2A) Wired fast charging | 15W (9V/1.67A) Wired fast charging |
| Inductive / wireless charging | feature not registered | Not supported |
| Talk time autonomy | 33 hours (1.4 days) | feature not registered |
| Standby | 624 hours (26 days) | feature not registered |
➕ Other features | ||
| Asus Zenfone 6 (ZS630KL 64GB) | Galaxy A21s (SM-A217F/DSN 64GB/6GB) | |
| Call control | Voice dialing, Voice recorder | Voice dialing, Voice recorder, Voice commands |
| 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: Midnight Black, Twilight Silver • 19.5:9, HDR10, DCI-P3 100% display • Quick Charge 4.0 • 24-bit/192kHz audio • DTS Headphone X • Motorized flip-up main/selfie camera • Google Pay | • Colors: Black, White, Blue, Red |
☢️ Radiation rate | ||
| Asus Zenfone 6 (ZS630KL 64GB) | Galaxy A21s (SM-A217F/DSN 64GB/6GB) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | 0.422W/kg (head), 1.544W/kg (body) |