Samsung Galaxy A51 5G (SM-A516U) vs ZTE X990 (Messenger edition)
Side by side comparison between Samsung Galaxy A51 5G vs ZTE X990 phones, differences, pros, cons and full specifications. What's the better?
,
6.5"
AMOLED
AMOLED
1080x2400
48
MP
MP
32mp
6GB
RAM
RAM
Octa-core
4500
mAh
mAh
(Non removable)
vs
What's the better phone? Samsung Galaxy A51 5G (SM-A516U)
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!
27 Advantages 
2 Advantages | 4 Common items in both devices |
| Only digital zoom |
| 3.5mm jack |
| FM (RDS) |
| USB 2.0 Type-C, USB OTG On-The-Go / MicroUSB 2.0 |
| + 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 A51 5G (SM-A516U) | ZTE X990 (Messenger edition) | |
| Model | Galaxy A51 5G (SM-A516U) | X990 (Messenger edition) |
| Other model names | Galaxy A51 SM-A516UZKAXAA (Unlocked) | ZTE X990 Messenger edition by SFR |
| Country or region available |  USA | feature not registered |
| Brand | Samsung | ZTE |
| Release date | 4/29/2020, Announced: 4/8/2020 | 3/1/2010 |
| Depth | 8.7 millimeters (0.34 inches) | 11.8 millimeters (0.46 inches) |
| Size (width x height) | 73.6 x 158.9 millimeters (2.9 x 6.26 in) | 60.8 x 106.8 millimeters (2.39 x 4.2 in) |
| Weight | 187 grams (6.55 ounces) | 90 grams (3.15 ounces) |
| Build, materials | Aluminum body, glass front, plastic back | feature not registered |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Galaxy A51 5G (SM-A516U) | ZTE X990 (Messenger edition) | |
| Display type | Super AMOLED | TFT LCD |
| Screen size | 6.5" inches | 2.4" inches |
| Screen-to-body ratio | ~87.2% (screen-to-body ratio) | ~27.5% (screen-to-body ratio) |
| Display resolution | 1080x2400 pixels (20:9) | 320x240 pixels |
| Touchscreen | Capacitive Multitouch | Resistive Single touch 1-point |
| Pixel density (dot pitch) | 405 PPI | 167 PPI |
| Colors | 16 million | 260 thousand |
| Scratch-resistant glass | Gorilla Glass 3 | Not supported |
| Refresh rate | 60Hz | feature not registered |
| Display features | Always-On Display | feature not registered |
🤖 Operating System | ||
| Galaxy A51 5G (SM-A516U) | ZTE X990 (Messenger edition) | |
| System version | Android 10 | Windows Mobile 6.5 Professional Titanium |
| Firmware update | Android 13 | feature not registered |
| User Interface | One UI 2.5 / 3.1 / 4.1 / 5.0 | feature not registered |
⚙️ Processor | ||
| Galaxy A51 5G (SM-A516U) | ZTE X990 (Messenger edition) | |
| Chipset | 64bit: Samsung Exynos 980 (8nm) | feature not registered |
| CPU | Octa-core, 2 processors: 2x 2.2GHz ARM Cortex-A77 (Dual-core) 6x 1.8GHz ARM Cortex-A55 (Hexa-core) | Single-core, 1 processor: Single-core |
| GPU graphical controller | ARM Mali-G76 MP5 (728MHz) | feature not registered |
| Performance (benchmark) | AnTuTu: 316007 (v8) Geekbench: 1867(v5.1) GFXBench: 17fps (ES 3.1 onscreen) | feature not registered |
💽 Memory and storage | ||
| Galaxy A51 5G (SM-A516U) | ZTE X990 (Messenger edition) | |
| RAM memory | 6GB LPDDR4X | feature not registered |
| Internal storage | 128GB (105GB available) UFS 2.1 | 128MB (5MB available) |
| External storage | Until 1TB microSD, microSDXC (dedicated slot) | Until 8GB microSD, microSDHC (dedicated slot) |
📶 Mobile networks | ||
| Galaxy A51 5G (SM-A516U) | ZTE X990 (Messenger edition) | |
| Dual-SIM | Not supported | Not supported |
| SIM card | 1 slot (Single-SIM) nano-SIM (4FF) | 1 slot (Single-SIM) Standard mini-SIM (2FF) |
| Maximum Download / Upload | 2000/200 Mbps | 0.236 Mbps |
| Network technology | 2G, 3G, 4G, 5G | 2G |
| Frequency, bands | Expand band details Collapse details | |
| GSM MHz band | Quad-Band 850/900/1800/1900 | Dual-Band 900/1800 |
| Primary 2G network | GSM 850/900/1800/1900 | GSM 900/1800 |
| Primary 3G network | UMTS 850/900/1700/1900/2100 | Not supported |
| Primary 4G network | LTE Cat12/13 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 66) TD-LTE (38, 40, 41) VoLTE | Not supported |
| Primary 5G network | SA/NSA/Sub6 (41, 78) | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA | GPRS, EDGE |
| Secondary 2G network | Not supported | Not supported |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | Not supported | Not supported |
📷 Camera | ||
| Galaxy A51 5G (SM-A516U) | ZTE X990 (Messenger edition) | |
| Back camera (main camera) | (quad camera) 48 megapixels 12MP ultrawide f/2.213mm1.12µm 5MP telephoto f/2.440mm 5MP depth f/2.21/5.0"1.12µm | 2 megapixels |
| Main camera resolution | 8000x6000 pixels | 1600x1200 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 30 fps | QCIF (176x144) |
| Flash | LED flash | Not supported |
| Focal aperture | f/2.0 (aperture) | feature not registered |
| Focal length | 26mm lens | feature not registered |
| Sensor size | 1/2" inches | feature not registered |
| Pixel size | 0.8µm pixel | feature not registered |
| Autofocus | PDAF: phase detection autofocus | Not supported |
| Touch focus | Supported | feature not registered |
| Image stabilization | EIS: Digital stabilization | feature not registered |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | feature not registered |
| BSI sensor | Not supported | feature not registered |
| HDR | HDR photo on both cameras | feature not registered |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Galaxy A51 5G (SM-A516U) | ZTE X990 (Messenger edition) | |
| Front camera (secondary) | 32 megapixels | Not supported |
| Front camera resolution | 6528x4896 pixels | Not supported |
| Video recording (secondary) | 4K UHD (3840x2160) | Not supported |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.2 (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 A51 5G (SM-A516U) | ZTE X990 (Messenger edition) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | 2 microphones or more | feature not registered |
| Radio | FM (RDS) | FM (RDS) |
| TV | Not supported | Not supported |
| Video formats | MP4, H.265, H.264, H.263, XviD, MKV | MP4, H.264, H.263, WMV |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, WMA, eAAC+ |
🔌 Connectivity | ||
| Galaxy A51 5G (SM-A516U) | ZTE X990 (Messenger edition) | |
| USB | USB 2.0 Type-C, USB OTG On-The-Go | MicroUSB 2.0 |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | Not supported |
| Bluetooth | 5.0 + A2DP/LE | 2.0 + A2DP |
| WiFi | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot | Not supported |
| DLNA | Not supported | feature not registered |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou | Not supported |
| NFC | Supported | Not supported |
| Infrared port | Not supported | feature not registered |
🧭 Sensors | ||
| Galaxy A51 5G (SM-A516U) | ZTE X990 (Messenger edition) | |
| Sensors | Accelerometer Ambient light sensor ANT+ Compass Face unlock Fingerprint sensor (under display) Gyroscope Hall effect Virtual proximity sensor | Not supported |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Galaxy A51 5G (SM-A516U) | ZTE X990 (Messenger edition) | |
| Battery type | LiPo: li-ion polymer (Non removable) | Li-Ion: lithium-ion (Removable) |
| Battery capacity | 4500 mAh | 900 mAh |
| Charger, watts | 15W Wired fast charging | Wired charging |
| Inductive / wireless charging | Not supported | feature not registered |
| Talk time autonomy | feature not registered | 8 hours |
| Standby | feature not registered | 480 hours (20 days) |
➕ Other features | ||
| Galaxy A51 5G (SM-A516U) | ZTE X990 (Messenger edition) | |
| Call control | Voice dialing, Voice recorder | Voice recorder |
| Messaging | SMS (T9), MMS, E-mail, Push mail | SMS, MMS, E-mail |
| Hands-free calling | Supported | Supported |
| Video calling | Supported | Not supported |
| Ringtones | Polyphonic and customized | Polyphonic and customized |
| Web browser | HTML, XHTML, HTML5 | WAP, HTML |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Fixed QWERTY keyboard |
| Miscellaneous | • Colors: Prism Cube Black, Prism Cube White, Prism Cube Pink | • Colors: Black on white, Black on silver • Windows Live Messenger • Word, Excel, PowerPoint, OneNote, PDF viewer • Java framework |
☢️ Radiation rate | ||
| Galaxy A51 5G (SM-A516U) | ZTE X990 (Messenger edition) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | 1.18W/kg (head), 1.2W/kg (body) | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | feature not registered |