Samsung Galaxy M21s (SM-F415F/DS) vs Asus Zenfone 8 (256GB/16GB)
Side by side comparison between Samsung Galaxy M21s vs Asus Zenfone 8 phones, differences, pros, cons and full specifications. What's the better?
,
6.4"
AMOLED
AMOLED
1080x2340
64
MP
MP
32mp
4GB
RAM
RAM
Octa-core
6000
mAh
mAh
(Non removable)
vs
5.9"
AMOLED
AMOLED
1080x2400
64
MP
MP
12mp
16GB
RAM
RAM
Octa-core
4000
mAh
mAh
(Non removable)
What's the better phone? Asus Zenfone 8 (256GB/16GB)
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!
6 Advantages 
23 Advantages | 24 Common items in both devices |
| 8.9 millimeters (0.35 inches) |
| Super AMOLED |
| 16 million |
| LED flash |
| Only digital zoom |
| PDAF: phase detection autofocus |
| HDR photo on both cameras / HDR photo/video on both cameras |
| +17 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 | ||
| Galaxy M21s (SM-F415F/DS) | Asus Zenfone 8 (256GB/16GB) | |
| Change model | ||
| Model | Galaxy M21s (SM-F415F/DS) | Zenfone 8 (256GB/16GB) |
| Other model names | Galaxy M21s SM-F415F/Dual-Sim (4GB RAM) | Asus Zenfone 8 (ZS590KS, ZS590KS-2A007EU) |
| Country or region available |   (Latin America), Brazil |  (Global, International) |
| Brand | Samsung | Asus |
| Release date | 11/6/2020 | 5/13/2021, Announced: 5/12/2021 |
| Depth | 8.9 millimeters (0.35 inches) | 8.9 millimeters (0.35 inches) |
| Size (width x height) | 75.1 x 159.2 millimeters (2.96 x 6.27 in) | 68.5 x 148 millimeters (2.7 x 5.83 in) |
| Weight | 191 grams (6.69 ounces) | 169 grams (5.92 ounces) |
| Build, materials | Plastic body, glass front | Aluminum frame, glass front/back |
| Protection against water and others | Not supported | IP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistant |
📲 Display | ||
| Galaxy M21s (SM-F415F/DS) | Asus Zenfone 8 (256GB/16GB) | |
| Display type | Super AMOLED | Super AMOLED |
| Screen size | 6.4" inches | 5.9" inches |
| Screen-to-body ratio | ~84.1% (screen-to-body ratio) | ~82.9% (screen-to-body ratio) |
| Display resolution | 1080x2340 pixels (19.5:9) | 1080x2400 pixels (20:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch 10-points |
| Pixel density (dot pitch) | 403 PPI | 446 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass 3 | Gorilla Glass Victus |
| Refresh rate | 60Hz | 120Hz |
| Display features | 420nits[peak] | 700nits[typ], 1100nits[peak] HDR10+ Always-On Display |
🤖 Operating System | ||
| Galaxy M21s (SM-F415F/DS) | Asus Zenfone 8 (256GB/16GB) | |
| System version | Android 10 | Android 11 |
| Firmware update | Android 12 | Android 13 |
| User Interface | One UI 2.5 / 3.1 / 4.1 | ZenUI 8 / 9 / 10 |
⚙️ Processor | ||
| Galaxy M21s (SM-F415F/DS) | Asus Zenfone 8 (256GB/16GB) | |
| Chipset | 64bit: Samsung Exynos 9611 (10nm) | 64bit: Qualcomm Snapdragon 888 (SM8350) (5nm) |
| CPU | Octa-core, 2 processors: 4x 2.3GHz ARM Cortex-A73 (Quad-core) 4x 1.7GHz ARM Cortex-A53 (Quad-core) | Octa-core, 3 processors: 1x 2.84GHz Kryo 680 (Single-core) 3x 2.42GHz Kryo 680 (Triple-core) 4x 1.8GHz Kryo 680 (Quad-core) |
| GPU graphical controller | ARM Mali-G72 MP3 (850MHz) | Qualcomm Adreno 660 (840MHz) |
| Performance (benchmark) | feature not registered | AnTuTu: 676001 (v8), 799738 (v9) Geekbench: 3604 (v5.1) GFXBench: 61fps (ES 3.1 onscreen) |
💽 Memory and storage | ||
| Galaxy M21s (SM-F415F/DS) | Asus Zenfone 8 (256GB/16GB) | |
| RAM memory | 4GB LPDDR4X | 16GB LPDDR5 |
| Internal storage | 64GB (49GB available) UFS 2.1 | 256GB (228GB available) UFS 3.1 |
| External storage | Until 512GB microSD, microSDXC (dedicated slot) | Not supported |
📶 Mobile networks | ||
| Galaxy M21s (SM-F415F/DS) | Asus Zenfone 8 (256GB/16GB) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card (dedicated slot) | Dual-SIM Standby - Call active on one sim card |
| SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) | 2 slots (Dual-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 300/50 Mbps | 2000/1024 Mbps |
| Network technology | 2G, 3G, 4G | 2G, 3G, 4G, 5G |
| 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 850/900/1700/1900/2100 | UMTS 800/850/900/1700/1900/2100 |
| Primary 4G network | LTE Cat6 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 66) TD-LTE (38, 40, 41) VoLTE | LTE Cat20 VoLTE America version: LTE (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 25, 26, 30, 66, 71) TD-LTE (34, 38, 39, 40, 41, 42) Global version: LTE (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28) TD-LTE (34, 38, 39, 40, 41, 42) |
| Primary 5G network | Not supported | America version: SA/NSA (1, 2, 3, 5, 7, 8, 12, 20, 25, 38, 40, 66, 71, 77, 78) Global version: SA/NSA (1, 2, 3, 5, 7, 8, 12, 20, 28, 38, 77, 78) |
| 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, SA/NSA |
| Secondary 2G network | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Secondary 3G network | UMTS 850/900/1700/1900/2100 | UMTS 800/850/900/1700/1900/2100 |
| Secondary 4G network | LTE Cat6 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 66) TD-LTE (38, 40, 41) VoLTE | LTE Cat20 VoLTE America version: LTE (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 25, 26, 30, 66, 71) TD-LTE (34, 38, 39, 40, 41, 42) Global version: LTE (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28) TD-LTE (34, 38, 39, 40, 41, 42) |
| Secondary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A |
📷 Camera | ||
| Galaxy M21s (SM-F415F/DS) | Asus Zenfone 8 (256GB/16GB) | |
| Back camera (main camera) | (triple camera) 64 megapixels 8MP ultrawide f/2.2123°12mm1/4"1.12µm 5MP depth f/2.2 | (dual camera) 64 megapixels 12MP ultrawide f/2.2112°14mm1/2.55"1.4µmPDAF |
| Main camera resolution | 10120x6328 pixels | 10120x6328 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 30 fps | 8K UHD (7680x4320) 24 fps |
| Flash | LED flash | LED flash |
| Focal aperture | f/1.8 (aperture) | f/1.8 (aperture) |
| Focal length | 26mm lens | 26mm lens |
| Sensor size | 1/1.72" inches | 1/1.73" 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 | OIS (4-axis): Optical stabilization |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
| BSI sensor | Supported | Supported |
| HDR | HDR photo on both cameras | HDR photo/video on both cameras |
| Camera extras | 4K@30fps 1080p@30fps | 4K@120fps 1080p@240fps 720p@480fps |
📸 Front camera | ||
| Galaxy M21s (SM-F415F/DS) | Asus Zenfone 8 (256GB/16GB) | |
| Front camera (secondary) | 32 megapixels | 12 megapixels |
| Front camera resolution | 6528x4896 pixels | 4000x3000 pixels |
| Video recording (secondary) | Full HD (1920x1080) | 4K UHD (3840x2160) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.0 (aperture) | f/2.5 (aperture) |
| Focal length | 26mm lens | 28mm lens |
| Sensor size | 1/2.8" inches | 1/2.93" inches |
| Pixel size | 0.8µm pixel | 1.22µm pixel |
🔉 Sound and multimedia | ||
| Galaxy M21s (SM-F415F/DS) | Asus Zenfone 8 (256GB/16GB) | |
| Loudspeaker | Mono sound (not stereo) | Stereo sound 32-bit/384kHz |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | FM (RDS) | 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 | ||
| Galaxy M21s (SM-F415F/DS) | Asus Zenfone 8 (256GB/16GB) | |
| USB | USB 2.0 Type-C reversible connector | USB 2.0 Type-C, USB OTG On-The-Go |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | USB Type-C (reversible) |
| Bluetooth | 5.0 + A2DP/LE | 5.2 + 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/ax [wifi6E/6] (2.4GHz, 5GHz, 6GHz) + MIMO WiFi Direct, hotspot |
| DLNA | Not supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS, NavIC |
| NFC | Not supported | Supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Galaxy M21s (SM-F415F/DS) | Asus Zenfone 8 (256GB/16GB) | |
| Sensors | Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (rear-mounted) Gyroscope Virtual proximity sensor | Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (under display) Gyroscope Hall effect Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Galaxy M21s (SM-F415F/DS) | Asus Zenfone 8 (256GB/16GB) | |
| Battery type | LiPo: li-ion polymer (Non removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 6000 mAh | 4000 mAh |
| Charger, watts | 15W Wired fast charging | 30W Wired fast charging 5W Reverse charging by cable Quick Charge 4 USB Power Delivery 3.0 |
| Inductive / wireless charging | Not supported | Not supported |
| Talk time autonomy | 48 hours (2 days) | feature not registered |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| Galaxy M21s (SM-F415F/DS) | Asus Zenfone 8 (256GB/16GB) | |
| Call control | Voice dialing, Voice recorder, Voice commands | 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: Black, Blue | • Colors: Obsidian Black, Horizon Silver |
☢️ Radiation rate | ||
| Galaxy M21s (SM-F415F/DS) | Asus Zenfone 8 (256GB/16GB) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | 0.383W/kg (head) | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | feature not registered |