Asus Zenfone C (ZC451CG) vs Samsung Galaxy M21s (SM-F415F/DS)
Side by side comparison between Asus Zenfone C vs Samsung Galaxy M21s phones, differences, pros, cons and full specifications. What's the better?
,
4.5"
IPS
IPS
480x854
5
MP
MP
0.3mp
1GB
RAM
RAM
Dual-core
2100
mAh
mAh
(Removable)
vs
6.4"
AMOLED
AMOLED
1080x2340
64
MP
MP
32mp
4GB
RAM
RAM
Octa-core
6000
mAh
mAh
(Non removable)
What's the better phone? Samsung Galaxy M21s (SM-F415F/DS)
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!
3 Advantages 
28 Advantages | 19 Common items in both devices |
| Plastic body, glass front |
| 16 million |
| LED flash |
| Only digital zoom |
| Autofocus / PDAF: phase detection autofocus |
| Capacitive |
| Multitouch |
| +12 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 C (ZC451CG) | Galaxy M21s (SM-F415F/DS) | |
| Change model | ||
| Model | Zenfone C (ZC451CG) | Galaxy M21s (SM-F415F/DS) |
| Other model names | Asus Zenfone C Dual-sim ZC451CG | Galaxy M21s SM-F415F/Dual-Sim (4GB RAM) |
| Country or region available | feature not registered |   (Latin America), Brazil |
| Brand | Asus | Samsung |
| Release date | 2/1/2015 | 11/6/2020 |
| Depth | 10.9 millimeters (0.43 inches) | 8.9 millimeters (0.35 inches) |
| Size (width x height) | 67 x 136.5 millimeters (2.64 x 5.37 in) | 75.1 x 159.2 millimeters (2.96 x 6.27 in) |
| Weight | 150 grams (5.25 ounces) | 191 grams (6.69 ounces) |
| Build, materials | Plastic body, glass front | Plastic body, glass front |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Asus Zenfone C (ZC451CG) | Galaxy M21s (SM-F415F/DS) | |
| Display type | TFT IPS LCD | Super AMOLED |
| Screen size | 4.5" inches | 6.4" inches |
| Screen-to-body ratio | ~61% (screen-to-body ratio) | ~84.1% (screen-to-body ratio) |
| Display resolution | 480x854 pixels | 1080x2340 pixels (19.5:9) |
| Touchscreen | Capacitive Multitouch 5-points | Capacitive Multitouch |
| Pixel density (dot pitch) | 218 PPI | 403 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Not supported | Gorilla Glass 3 |
| Refresh rate | feature not registered | 60Hz |
| Display features | feature not registered | 420nits[peak] |
🤖 Operating System | ||
| Asus Zenfone C (ZC451CG) | Galaxy M21s (SM-F415F/DS) | |
| System version | Android 4.4.2 KitKat | Android 10 |
| Firmware update | feature not registered | Android 12 |
| User Interface | feature not registered | One UI 2.5 / 3.1 / 4.1 |
⚙️ Processor | ||
| Asus Zenfone C (ZC451CG) | Galaxy M21s (SM-F415F/DS) | |
| Chipset | 32bit: Intel Atom Z2520 | 64bit: Samsung Exynos 9611 (10nm) |
| CPU | Dual-core, 1 processor: 2x 1.2GHz Atom Hyper-Threading (Dual-core) | Octa-core, 2 processors: 4x 2.3GHz ARM Cortex-A73 (Quad-core) 4x 1.7GHz ARM Cortex-A53 (Quad-core) |
| GPU graphical controller | PowerVR SGX544 MP2 | ARM Mali-G72 MP3 (850MHz) |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Asus Zenfone C (ZC451CG) | Galaxy M21s (SM-F415F/DS) | |
| RAM memory | 1GB LPDDR2 | 4GB LPDDR4X |
| Internal storage | 8GB (5GB available) | 64GB (49GB available) UFS 2.1 |
| External storage | Until 64GB microSD, microSDXC (dedicated slot) | Until 512GB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| Asus Zenfone C (ZC451CG) | Galaxy M21s (SM-F415F/DS) | |
| 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) micro-SIM (3FF) | 2 slots (Dual-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 42/5.76 Mbps | 300/50 Mbps |
| Network technology | 2G, 3G | 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 850/900/1900/2100 | UMTS 850/900/1700/1900/2100 |
| Primary 4G network | Not supported | LTE Cat6 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 66) TD-LTE (38, 40, 41) VoLTE |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+ | 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 850/900/1700/1900/2100 |
| Secondary 4G network | Not supported | LTE Cat6 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 66) TD-LTE (38, 40, 41) VoLTE |
| Secondary data network | GPRS, EDGE | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A |
📷 Camera | ||
| Asus Zenfone C (ZC451CG) | Galaxy M21s (SM-F415F/DS) | |
| Back camera (main camera) | 5 megapixels | (triple camera) 64 megapixels 8MP ultrawide f/2.2123°12mm1/4"1.12µm 5MP depth f/2.2 |
| Main camera resolution | 2592x1944 pixels | 10120x6328 pixels |
| Video recording (primary) | HD (1280x720) 30 fps | 4K UHD (3840x2160) 30 fps |
| Flash | LED flash | LED flash |
| Focal aperture | f/2.0 (aperture) | f/1.8 (aperture) |
| Focal length | feature not registered | 26mm (lens) |
| Sensor size | feature not registered | 1/1.72" inches |
| Pixel size | feature not registered | 0.8µm pixel |
| Autofocus | Autofocus | PDAF: phase detection autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | feature not registered | 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 | Supported |
| HDR | HDR photo only main camera | HDR photo on both cameras |
| Camera extras | feature not registered | 4K@30fps 1080p@30fps |
📸 Front camera | ||
| Asus Zenfone C (ZC451CG) | Galaxy M21s (SM-F415F/DS) | |
| Front camera (secondary) | 0.3 megapixels | 32 megapixels |
| Front camera resolution | 640x480 pixels | 6528x4896 pixels |
| Video recording (secondary) | VGA (640x480) | Full HD (1920x1080) |
| Front flash | Not supported | Not supported |
| Focal aperture | feature not registered | f/2.0 (aperture) |
| Focal length | feature not registered | 26mm (lens) |
| Sensor size | feature not registered | 1/2.8" inches |
| Pixel size | feature not registered | 0.8µm pixel |
🔉 Sound and multimedia | ||
| Asus Zenfone C (ZC451CG) | Galaxy M21s (SM-F415F/DS) | |
| Loudspeaker | Supported | Mono sound (not stereo) |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | FM | FM (RDS) |
| TV | Not supported | Not supported |
| Video formats | MP4, H.264, H.263 | MP4, H.265, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, eAAC+ | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| Asus Zenfone C (ZC451CG) | Galaxy M21s (SM-F415F/DS) | |
| USB | MicroUSB 2.0 | USB 2.0 Type-C reversible connector |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | Not supported |
| Bluetooth | 4.0 + A2DP | 5.0 + A2DP/LE |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) | 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 | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou |
| NFC | Not supported | Not supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Asus Zenfone C (ZC451CG) | Galaxy M21s (SM-F415F/DS) | |
| Sensors | Accelerometer Ambient light sensor Proximity sensor | Accelerometer Ambient light sensor Compass Face unlock 2D Fingerprint sensor (rear-mounted) Gyroscope Virtual proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Asus Zenfone C (ZC451CG) | Galaxy M21s (SM-F415F/DS) | |
| Battery type | Li-Ion: lithium-ion (Removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 2100 mAh | 6000 mAh |
| Charger, watts | Wired charging | 15W Wired fast charging |
| Inductive / wireless charging | feature not registered | Not supported |
| Talk time autonomy | feature not registered | 48 hours (2 days) |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| Asus Zenfone C (ZC451CG) | Galaxy M21s (SM-F415F/DS) | |
| 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: Black, Pearl White, Cherry Red • Asus ZenUI • SonicMaster • WiFi hotspot • Java framework | • Colors: Black, Blue |
☢️ Radiation rate | ||
| Asus Zenfone C (ZC451CG) | Galaxy M21s (SM-F415F/DS) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | 0.383W/kg (head) |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | feature not registered |