Samsung Galaxy M21s (SM-F415F/DS) vs Alcatel Idol 4 (6055K)
Side by side comparison between Samsung Galaxy M21s vs Alcatel Idol 4 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
5.2"
IPS
IPS
1080x1920
13
MP
MP
8mp
3GB
RAM
RAM
Octa-core
2610
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!
24 Advantages 
7 Advantages | 18 Common items in both devices |
| 16 million |
| Only digital zoom |
| PDAF: phase detection autofocus |
| EIS: Digital stabilization |
| (front) Full HD (1920x1080) |
| 4G LTE-A / 4G LTE |
| Capacitive |
| +11 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) | Alcatel Idol 4 (6055K) | |
| Change model | ||
| Model | Galaxy M21s (SM-F415F/DS) | Idol 4 (6055K) |
| Other model names | Galaxy M21s SM-F415F/Dual-Sim (4GB RAM) | Alcatel IDOL 4 Dual-Sim 3GB RAM, Alcatel 6055K, OT-6055K |
| Country or region available |   (Latin America), Brazil |  (Europe) |
| Brand | Samsung | Alcatel |
| Release date | 11/6/2020 | 3/1/2016 |
| Depth | 8.9 millimeters (0.35 inches) | 7.1 millimeters (0.28 inches) |
| Size (width x height) | 75.1 x 159.2 millimeters (2.96 x 6.27 in) | 72.5 x 147 millimeters (2.85 x 5.79 in) |
| Weight | 191 grams (6.69 ounces) | 135 grams (4.73 ounces) |
| Build, materials | Plastic body, glass front | feature not registered |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Galaxy M21s (SM-F415F/DS) | Alcatel Idol 4 (6055K) | |
| Display type | Super AMOLED | TFT IPS LCD |
| Screen size | 6.4" inches | 5.2" inches |
| Screen-to-body ratio | ~84.1% (screen-to-body ratio) | ~69.9% (screen-to-body ratio) |
| Display resolution | 1080x2340 pixels (19.5:9) | 1080x1920 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch 10-points |
| Pixel density (dot pitch) | 403 PPI | 424 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass 3 | Not supported |
| Refresh rate | 60Hz | feature not registered |
| Display features | 420nits[peak] | feature not registered |
🤖 Operating System | ||
| Galaxy M21s (SM-F415F/DS) | Alcatel Idol 4 (6055K) | |
| System version | Android 10 | Android 6.0.1 Marshmallow |
| Firmware update | Android 12 | feature not registered |
| User Interface | One UI 2.5 / 3.1 / 4.1 | feature not registered |
⚙️ Processor | ||
| Galaxy M21s (SM-F415F/DS) | Alcatel Idol 4 (6055K) | |
| Chipset | 64bit: Samsung Exynos 9611 (10nm) | 64bit: Qualcomm Snapdragon 617 MSM8952 (28nm) |
| CPU | Octa-core, 2 processors: 4x 2.3GHz ARM Cortex-A73 (Quad-core) 4x 1.7GHz ARM Cortex-A53 (Quad-core) | Octa-core, 2 processors: 4x 1.5GHz ARM Cortex-A53 (Quad-core) 4x 1.2GHz ARM Cortex-A53 (Quad-core) |
| GPU graphical controller | ARM Mali-G72 MP3 (850MHz) | Qualcomm Adreno 405 550Mhz |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Galaxy M21s (SM-F415F/DS) | Alcatel Idol 4 (6055K) | |
| RAM memory | 4GB LPDDR4X | 3GB LPDDR3 |
| Internal storage | 64GB (49GB available) UFS 2.1 | 16GB (10GB available) eMMC 5.1 |
| External storage | Until 512GB microSD, microSDXC (dedicated slot) | Until 256GB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot) |
📶 Mobile networks | ||
| Galaxy M21s (SM-F415F/DS) | Alcatel Idol 4 (6055K) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card (dedicated slot) | Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot) |
| SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) | 2 slots (Dual-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 300/50 Mbps | 150/50 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 | UMTS 850/900/1700/1900/2100 | UMTS 850/900/1900/2100 |
| 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 Cat4 700/800/900/1800/2100/2600 (Bands 1,3,7,8,20,28) |
| 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+, LTE |
| Secondary 2G network | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Secondary 3G network | UMTS 850/900/1700/1900/2100 | Not supported |
| 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 | Not supported |
| Secondary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A | GPRS, EDGE |
📷 Camera | ||
| Galaxy M21s (SM-F415F/DS) | Alcatel Idol 4 (6055K) | |
| Back camera (main camera) | (triple camera) 64 megapixels 8MP ultrawide f/2.2123°12mm1/4"1.12µm 5MP depth f/2.2 | 13 megapixels |
| Main camera resolution | 10120x6328 pixels | 4128x3096 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 30 fps | Full HD (1920x1080) 30 fps |
| Flash | LED flash | Dual-LED on main camera and LED on front camera |
| Focal aperture | f/1.8 (aperture) | f/2.0 (aperture) |
| Focal length | 26mm lens | feature not registered |
| Sensor size | 1/1.72" inches | 1/3" inches |
| Pixel size | 0.8µm pixel | 1.12µm pixel |
| Autofocus | PDAF: 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 | Supported | Not supported |
| HDR | HDR photo on both cameras | HDR photo only main camera |
| Camera extras | 4K@30fps 1080p@30fps | feature not registered |
📸 Front camera | ||
| Galaxy M21s (SM-F415F/DS) | Alcatel Idol 4 (6055K) | |
| Front camera (secondary) | 32 megapixels | 8 megapixels |
| Front camera resolution | 6528x4896 pixels | 3264x2448 pixels |
| Video recording (secondary) | Full HD (1920x1080) | Full HD (1920x1080) |
| Front flash | Not supported | LED |
| Focal aperture | f/2.0 (aperture) | feature not registered |
| Focal length | 26mm lens | feature not registered |
| Sensor size | 1/2.8" inches | feature not registered |
| Pixel size | 0.8µm pixel | 1.12µm pixel |
🔉 Sound and multimedia | ||
| Galaxy M21s (SM-F415F/DS) | Alcatel Idol 4 (6055K) | |
| Loudspeaker | Mono sound (not stereo) | Supported |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | FM (RDS) | 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 |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, WMA, AAC+ |
🔌 Connectivity | ||
| Galaxy M21s (SM-F415F/DS) | Alcatel Idol 4 (6055K) | |
| USB | USB 2.0 Type-C reversible connector | MicroUSB 2.0, USB OTG On-The-Go |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | Not supported |
| Bluetooth | 5.0 + A2DP/LE | 4.2 + A2DP |
| WiFi | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot | 802.11 a/b/g/n [wifi4] (2.4GHz, 5GHz) WiFi Direct, hotspot |
| DLNA | Not supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou | A-GPS, GeoTagging |
| NFC | Not supported | Supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Galaxy M21s (SM-F415F/DS) | Alcatel Idol 4 (6055K) | |
| Sensors | Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (rear-mounted) Gyroscope Virtual proximity sensor | Accelerometer Ambient light sensor Compass Gyroscope Hall effect Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Galaxy M21s (SM-F415F/DS) | Alcatel Idol 4 (6055K) | |
| Battery type | LiPo: li-ion polymer (Non removable) | Li-Ion: lithium-ion (Non removable) |
| Battery capacity | 6000 mAh | 2610 mAh |
| Charger, watts | 15W Wired fast charging | 18W Wired fast charging |
| Inductive / wireless charging | Not supported | feature not registered |
| Talk time autonomy | 48 hours (2 days) | 15 hours |
| Standby | feature not registered | 720 hours (30 days) |
➕ Other features | ||
| Galaxy M21s (SM-F415F/DS) | Alcatel Idol 4 (6055K) | |
| Call control | Voice dialing, Voice recorder, Voice commands | Voice dialing, Voice recorder |
| Messaging | SMS (T9), MMS, E-mail, Push mail | SMS (iTap), 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: Gold, Dark Gray, Silver, Rose Gold • USB OTG On-The-Go • LED notification (white light) • Oleophobic coating • Glass back panel • JBL earphones • Hi-Fi 3.6W dual-stereo • Front camera: Wide Angle 84° • Quick Charge 2.0 • Fast battery charging: 60% in 30min • Reversible phone • VR goggles compatible |
☢️ Radiation rate | ||
| Galaxy M21s (SM-F415F/DS) | Alcatel Idol 4 (6055K) | |
| 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 |