Xiaomi Poco X3 GT (256GB) vs Samsung Galaxy M51 (SM-M515F/DSN)
Side by side comparison between Xiaomi Poco X3 GT vs Samsung Galaxy M51 phones, differences, pros, cons and full specifications. What's the better?
,
6.6"
IPS
IPS
1080x2400
64
MP
MP
16mp
8GB
RAM
RAM
Octa-core
5000
mAh
mAh
(Non removable)
vs
6.7"
AMOLED
AMOLED
1080x2340
64
MP
MP
32mp
6GB
RAM
RAM
Octa-core
7000
mAh
mAh
(Non removable)
What's the better phone? Xiaomi Poco X3 GT (256GB)
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!
17 Advantages 
10 Advantages | 25 Common items in both devices |
| Plastic body, glass front |
| 16 million |
| LED flash |
| Only digital zoom |
| PDAF: phase detection autofocus |
| EIS: Digital stabilization |
| HDR photo on both cameras |
| +18 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 | ||
| Xiaomi Poco X3 GT (256GB) | Galaxy M51 (SM-M515F/DSN) | |
| Model | Poco X3 GT (256GB) | Galaxy M51 (SM-M515F/DSN) |
| Other model names | POCO X3 GT (21061110AG) | Samsung Galaxy M51 SM-M515F/DSN (6GB RAM) |
| Country or region available |  (Global, International) |  (Europe), (Global, International) |
| Brand | Xiaomi | Samsung |
| Release date | 8/19/2021, Announced: 7/28/2021 | 9/11/2020 |
| Depth | 8.9 millimeters (0.35 inches) | 9.5 millimeters (0.37 inches) |
| Size (width x height) | 75.9 x 163.3 millimeters (2.99 x 6.43 in) | 76.3 x 163.9 millimeters (3 x 6.45 in) |
| Weight | 193 grams (6.76 ounces) | 213 grams (7.46 ounces) |
| Build, materials | Plastic body, glass front | Plastic body, glass front |
| Protection against water and others | IP53 certified: protection against dust and splashing | Not supported |
📲 Display | ||
| Xiaomi Poco X3 GT (256GB) | Galaxy M51 (SM-M515F/DSN) | |
| Display type | TFT IPS LCD | Super AMOLED Plus |
| Screen size | 6.6" inches | 6.7" inches |
| Screen-to-body ratio | ~84.9% (screen-to-body ratio) | ~88.1% (screen-to-body ratio) |
| Display resolution | 1080x2400 pixels (20:9) | 1080x2340 pixels (19.5:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 399 PPI | 385 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass Victus | Gorilla Glass 3 |
| Refresh rate | 120Hz | 60Hz |
| Display features | 450nits[typ] HDR10 | Not supported |
🤖 Operating System | ||
| Xiaomi Poco X3 GT (256GB) | Galaxy M51 (SM-M515F/DSN) | |
| System version | Android 11 | Android 10 |
| Firmware update | Android 12 | Android 11 |
| User Interface | MIUI 12.5 / 13 | feature not registered |
⚙️ Processor | ||
| Xiaomi Poco X3 GT (256GB) | Galaxy M51 (SM-M515F/DSN) | |
| Chipset | 64bit: MediaTek Dimensity 1100 (MT6891Z) (6nm) | 64bit: Qualcomm Snapdragon 730G (SM7150-AB) (8nm) |
| CPU | Octa-core, 2 processors: 4x 2.6GHz ARM Cortex-A78 (Quad-core) 4x 2GHz ARM Cortex-A55 (Quad-core) | Octa-core, 2 processors: 2x 2.2GHz Kryo 470 Gold (Dual-core) 6x 1.8GHz Kryo 470 Silver (Hexa-core) |
| GPU graphical controller | ARM Mali-G77 MC9 (836MHz) | Qualcomm Adreno 618 (700MHz) |
| Performance (benchmark) | AnTuTu: 506800 (v8), 578505 (v9) Geekbench: 2310 (v5.1) GFXBench: 38fps (ES 3.1 onscreen) | feature not registered |
💽 Memory and storage | ||
| Xiaomi Poco X3 GT (256GB) | Galaxy M51 (SM-M515F/DSN) | |
| RAM memory | 8GB LPDDR4X | 6GB LPDDR4X |
| Internal storage | 256GB (230GB available) UFS 3.1 | 128GB (106GB available) eMMC 5.1 |
| External storage | Not supported | Until 1TB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| Xiaomi Poco X3 GT (256GB) | Galaxy M51 (SM-M515F/DSN) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card | Dual-SIM Standby - Call active on one sim card (dedicated slot) |
| SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) | 2 slots (Dual-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 2000/1024 Mbps | 400/50 Mbps |
| Network technology | 2G, 3G, 4G, 5G | 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 850/900/1700/1900/2100 |
| Primary 4G network | LTE Cat6 (1, 2, 3, 4, 5, 7, 8, 18, 19, 26, 28) TD-LTE (38, 40, 41, 42) VoLTE | LTE Cat6 (1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 26, 28, 66) TD-LTE (38, 40, 41) VoLTE |
| Primary 5G network | SA/NSA (1, 3, 28, 41, 77, 78) | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA | 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 | UMTS 850/900/1700/1900/2100 | Not supported |
| Secondary 4G network | LTE Cat6 (1, 2, 3, 4, 5, 7, 8, 18, 19, 26, 28) TD-LTE (38, 40, 41, 42) VoLTE | Not supported |
| Secondary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A | GPRS, EDGE |
📷 Camera | ||
| Xiaomi Poco X3 GT (256GB) | Galaxy M51 (SM-M515F/DSN) | |
| Back camera (main camera) | (triple camera) 64 megapixels 8MP ultrawide f/2.2120°1/4"1.12µm 2MP macro f/2.4 | (quad camera) 64 megapixels 12MP ultrawide f/2.2123° 5MP macro f/2.4 5MP depth f/2.4 |
| Main camera resolution | 10120x6328 pixels | 10120x6328 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 30 fps | 4K UHD (3840x2160) 30 fps |
| Flash | LED flash | LED flash |
| Focal aperture | f/1.8 (aperture) | f/1.8 (aperture) |
| Focal length | 26mm lens | 26mm lens |
| Sensor size | 1/1.97" inches | 1/1.73" inches |
| Pixel size | 0.7µm pixel | 0.8µm 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 on both cameras |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Xiaomi Poco X3 GT (256GB) | Galaxy M51 (SM-M515F/DSN) | |
| Front camera (secondary) | 16 megapixels | 32 megapixels |
| Front camera resolution | 4608x3456 pixels | 6528x4896 pixels |
| Video recording (secondary) | Full HD (1920x1080) | Full HD (1920x1080) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.5 (aperture) | f/2.0 (aperture) |
| Focal length | feature not registered | 26mm lens |
| Sensor size | 1/3.06" inches | 1/2.8" inches |
| Pixel size | 1µm pixel | 0.8µm pixel |
🔉 Sound and multimedia | ||
| Xiaomi Poco X3 GT (256GB) | Galaxy M51 (SM-M515F/DSN) | |
| Loudspeaker | Stereo sound with dual speakers 24-bit/192kHz Tuned by JBL | Supported |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | Not supported | 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 | ||
| Xiaomi Poco X3 GT (256GB) | Galaxy M51 (SM-M515F/DSN) | |
| USB | USB 2.0 Type-C, USB OTG On-The-Go | USB 2.0 Type-C reversible connector |
| Audio output | Type-C jack with 3.5mm jack adapter | 3.5mm jack |
| TV output | USB Type-C (reversible) | Not supported |
| Bluetooth | 5.2 + A2DP/LE | 5.0 + A2DP/LE |
| WiFi | 802.11 a/b/g/n/ac/ax [wifi6] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot | 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, GALILEO, BeiDou, QZSS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou |
| NFC | Supported | Supported |
| Infrared port | Supported | Not supported |
🧭 Sensors | ||
| Xiaomi Poco X3 GT (256GB) | Galaxy M51 (SM-M515F/DSN) | |
| Sensors | Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (side-mounted) Gyroscope | Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (side-mounted) Gyroscope Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Xiaomi Poco X3 GT (256GB) | Galaxy M51 (SM-M515F/DSN) | |
| Battery type | LiPo: li-ion polymer (Non removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 5000 mAh | 7000 mAh |
| Charger, watts | 67W Wired fast charging USB Power Delivery 3.0 | 25W Wired fast charging Reverse charging by cable |
| Inductive / wireless charging | Not supported | Not supported |
| Talk time autonomy | feature not registered | 64 hours (2.7 days) |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| Xiaomi Poco X3 GT (256GB) | Galaxy M51 (SM-M515F/DSN) | |
| 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, Wave Blue, Cloud White • Protective case included | • Colors: Celestial Black, Electric Blue • One UI 2.1, 3.1 |
☢️ Radiation rate | ||
| Xiaomi Poco X3 GT (256GB) | Galaxy M51 (SM-M515F/DSN) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | 0.609W/kg (head), 1.446W/kg (body) |