Samsung Galaxy M21s (SM-F415F/DS) vs ZTE Nubia Z7
Side by side comparison between Samsung Galaxy M21s vs ZTE Nubia Z7 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
5.5"
TFT
TFT
1440x2560
13
MP
MP
5mp
3GB
RAM
RAM
Quad-core
3000
mAh
mAh
(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!
19 Advantages 
8 Advantages | 24 Common items in both devices |
| 8.9 millimeters (0.35 inches) |
| 16 million |
| Only digital zoom |
| PDAF: phase detection autofocus / Autofocus |
| 4K UHD (3840x2160) |
| (front) Full HD (1920x1080) |
| 4G LTE-A / 4G LTE |
| +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) | ZTE Nubia Z7 | |
| Change model | ||
| Model | Galaxy M21s (SM-F415F/DS) | Nubia Z7 |
| Other model names | Galaxy M21s SM-F415F/Dual-Sim (4GB RAM) | ZTE Nubia Z7 NX506J, ZTE Nubia Z7 Dual-sim |
| Country or region available |   (Latin America), Brazil | feature not registered |
| Brand | Samsung | ZTE |
| Release date | 11/6/2020 | 7/1/2014 |
| 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) | 75.7 x 153.2 millimeters (2.98 x 6.03 in) |
| Weight | 191 grams (6.69 ounces) | 160 grams (5.6 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) | ZTE Nubia Z7 | |
| Display type | Super AMOLED | TFT LCD |
| Screen size | 6.4" inches | 5.5" inches |
| Screen-to-body ratio | ~84.1% (screen-to-body ratio) | ~71.9% (screen-to-body ratio) |
| Display resolution | 1080x2340 pixels (19.5:9) | 1440x2560 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 403 PPI | 534 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) | ZTE Nubia Z7 | |
| System version | Android 10 | Android 4.4.2 KitKat |
| 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) | ZTE Nubia Z7 | |
| Chipset | 64bit: Samsung Exynos 9611 (10nm) | 32bit: Qualcomm Snapdragon 801 MSM8974-AC (28nm) |
| CPU | Octa-core, 2 processors: 4x 2.3GHz ARM Cortex-A73 (Quad-core) 4x 1.7GHz ARM Cortex-A53 (Quad-core) | Quad-core, 1 processor: 4x 2.5GHz Krait 400 (Quad-core) |
| GPU graphical controller | ARM Mali-G72 MP3 (850MHz) | Qualcomm Adreno 330 578Mhz |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Galaxy M21s (SM-F415F/DS) | ZTE Nubia Z7 | |
| RAM memory | 4GB LPDDR4X | 3GB LPDDR3 |
| Internal storage | 64GB (49GB available) UFS 2.1 | 32GB (26GB available) |
| External storage | Until 512GB microSD, microSDXC (dedicated slot) | Not supported |
📶 Mobile networks | ||
| Galaxy M21s (SM-F415F/DS) | ZTE Nubia Z7 | |
| 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) micro-SIM (3FF) |
| Maximum Download / Upload | 300/50 Mbps | 100/50 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 1800/2100/2600 |
| 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) | ZTE Nubia Z7 | |
| 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 | 4K UHD (3840x2160) 30 fps |
| Flash | LED flash | Dual-LED flash |
| Focal aperture | f/1.8 (aperture) | f/2.0 (aperture) |
| Focal length | 26mm (lens) | feature not registered |
| Sensor size | 1/1.72" inches | feature not registered |
| Pixel size | 0.8µm pixel | feature not registered |
| Autofocus | PDAF: phase detection autofocus | Autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | EIS: Digital stabilization | feature not registered |
| 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) | ZTE Nubia Z7 | |
| Front camera (secondary) | 32 megapixels | 5 megapixels |
| Front camera resolution | 6528x4896 pixels | 2592x1944 pixels |
| Video recording (secondary) | Full HD (1920x1080) | Full HD (1920x1080) |
| Front flash | Not supported | Not supported |
| 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 | feature not registered |
🔉 Sound and multimedia | ||
| Galaxy M21s (SM-F415F/DS) | ZTE Nubia Z7 | |
| Loudspeaker | Mono sound (not stereo) | Supported |
| 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, DivX, XviD, H.264, H.263, WMV |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| Galaxy M21s (SM-F415F/DS) | ZTE Nubia Z7 | |
| 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 | Micro-B USB MHL-3 |
| Bluetooth | 5.0 + A2DP/LE | 4.0 + A2DP |
| 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) WiFi Direct, hotspot |
| DLNA | Not supported | Supported |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou | A-GPS, GeoTagging, GLONASS |
| NFC | Not supported | Supported |
| Infrared port | Not supported | Supported |
🧭 Sensors | ||
| Galaxy M21s (SM-F415F/DS) | ZTE Nubia Z7 | |
| Sensors | Accelerometer Ambient light sensor Compass Face unlock 2D Fingerprint sensor (rear-mounted) Gyroscope Virtual proximity sensor | Accelerometer Ambient light sensor Compass Gyroscope Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Galaxy M21s (SM-F415F/DS) | ZTE Nubia Z7 | |
| Battery type | LiPo: li-ion polymer (Non removable) | Li-Ion: lithium-ion (Removable) |
| Battery capacity | 6000 mAh | 3000 mAh |
| Charger, watts | 15W Wired fast charging | Wired charging |
| Inductive / wireless charging | Not supported | feature not registered |
| Talk time autonomy | 48 hours (2 days) | 20 hours |
| Standby | feature not registered | 500 hours (20.8 days) |
➕ Other features | ||
| Galaxy M21s (SM-F415F/DS) | ZTE Nubia Z7 | |
| 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: Black, White • Nubia UI 2.0 • DTS sound enhancement • Dual tone flash • Java framework |
☢️ Radiation rate | ||
| Galaxy M21s (SM-F415F/DS) | ZTE Nubia Z7 | |
| 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 |