Samsung Galaxy A9 2018 (SM-A920F/DS 128GB/6GB) vs Xiaomi Poco X3 Pro (J20SI 128GB)
Side by side comparison between Samsung Galaxy A9 (2018) vs Xiaomi Poco X3 Pro phones, differences, pros, cons and full specifications. What's the better?
,
6.3"
AMOLED
AMOLED
1080x2220
24
MP
MP
24mp
6GB
RAM
RAM
Octa-core
3800
mAh
mAh
(Non removable)
vs
6.67"
IPS
IPS
1080x2400
48
MP
MP
20mp
6GB
RAM
RAM
Octa-core
5160
mAh
mAh
(Non removable)
What's the better phone? Xiaomi Poco X3 Pro (J20SI 128GB)
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!
10 Advantages 
16 Advantages | 31 Common items in both devices |
| 6GB LPDDR4X |
| 128GB (110GB available) / 128GB (106GB available) |
| Until 1TB microSD, microSDXC |
| 16 million |
| PDAF: phase detection autofocus |
| EIS: Digital stabilization |
| HDR photo on both cameras |
| +24 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 A9 2018 (SM-A920F/DS 128GB/6GB) | Xiaomi Poco X3 Pro (J20SI 128GB) | |
| Model | Galaxy A9 2018 (SM-A920F/DS 128GB/6GB) | Poco X3 Pro (J20SI 128GB) |
| Other model names | Galaxy A9 SM-A920F/Dual-Sim (6GB RAM), SM-A920FZBJZTO | POCO X3 Pro M2102J20SI (128GB+6GB RAM) |
| Country or region available |     (Europe), Brazil, India, Malaysia | India |
| Brand | Samsung | Xiaomi |
| Release date | 10/11/2018 | 3/24/2021, Announced: 3/22/2021 |
| Depth | 7.8 millimeters (0.31 inches) | 9.4 millimeters (0.37 inches) |
| Size (width x height) | 77 x 162.5 millimeters (3.03 x 6.4 in) | 76.8 x 165.3 millimeters (3.02 x 6.51 in) |
| Weight | 183 grams (6.41 ounces) | 215 grams (7.53 ounces) |
| Build, materials | Aluminum body, glass front | Plastic body, glass front |
| Protection against water and others | Not supported | IP53 certified: protection against dust and splashing |
📲 Display | ||
| Galaxy A9 2018 (SM-A920F/DS 128GB/6GB) | Xiaomi Poco X3 Pro (J20SI 128GB) | |
| Display type | Super AMOLED | TFT IPS LCD |
| Screen size | 6.3" inches | 6.67" inches |
| Screen-to-body ratio | ~80.5% (screen-to-body ratio) | ~84.6% (screen-to-body ratio) |
| Display resolution | 1080x2220 pixels (18.5:9) | 1080x2400 pixels (20:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 392 PPI | 395 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass 5 | Gorilla Glass 6 |
| Refresh rate | 60Hz | 120Hz |
| Display features | Not supported | 450nits[typ] HDR10 |
🤖 Operating System | ||
| Galaxy A9 2018 (SM-A920F/DS 128GB/6GB) | Xiaomi Poco X3 Pro (J20SI 128GB) | |
| System version | Android 8.0 Oreo | Android 11 |
| Firmware update | Android 9.0 Pie | Android 13 |
| User Interface | feature not registered | MIUI 12.5 / 13 / 14 |
⚙️ Processor | ||
| Galaxy A9 2018 (SM-A920F/DS 128GB/6GB) | Xiaomi Poco X3 Pro (J20SI 128GB) | |
| Chipset | 64bit: Qualcomm Snapdragon 660 SDM660 (14nm) | 64bit: Qualcomm Snapdragon 860 (SM8150-AC) (7nm) |
| CPU | Octa-core, 2 processors: 4x 2.2GHz Kryo 260 Gold (Quad-core) 4x 1.8GHz Kryo 260 Silver (Quad-core) | Octa-core, 3 processors: 1x 2.96GHz Kryo 485 Gold (Single-core) 3x 2.42GHz Kryo 485 Gold (Triple-core) 4x 1.78GHz Kryo 485 Silver (Quad-core) |
| GPU graphical controller | Qualcomm Adreno 512 650Mhz | Qualcomm Adreno 640 (250-672MHz) |
| Performance (benchmark) | feature not registered | AnTuTu: 483527 (v8) Geekbench: 2574 (v5.1) GFXBench: 38fps (ES 3.1 onscreen) |
💽 Memory and storage | ||
| Galaxy A9 2018 (SM-A920F/DS 128GB/6GB) | Xiaomi Poco X3 Pro (J20SI 128GB) | |
| RAM memory | 6GB LPDDR4X | 6GB LPDDR4X |
| Internal storage | 128GB (110GB available) eMMC 5.1 | 128GB (106GB available) UFS 3.1 |
| External storage | Until 1TB microSD, microSDXC (dedicated slot) | Until 1TB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot) |
📶 Mobile networks | ||
| Galaxy A9 2018 (SM-A920F/DS 128GB/6GB) | Xiaomi Poco X3 Pro (J20SI 128GB) | |
| 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 | 450/50 Mbps | 800/150 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 850/900/1900/2100 | UMTS 850/900/1700/1900/2100 |
| Primary 4G network | LTE Cat9 (1, 3, 5, 7, 8, 20) TD-LTE (38, 40) | LTE Cat15/13 (1, 2, 3, 4, 5, 7, 8, 20, 28) TD-LTE (38, 40, 41) |
| 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+, 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 Cat15/13 (1, 2, 3, 4, 5, 7, 8, 20, 28) TD-LTE (38, 40, 41) |
| Secondary data network | GPRS, EDGE | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A |
📷 Camera | ||
| Galaxy A9 2018 (SM-A920F/DS 128GB/6GB) | Xiaomi Poco X3 Pro (J20SI 128GB) | |
| Back camera (main camera) | (quad camera) 24 megapixels 10MP telephoto f/2.452mm1/3.9"1.0µmAF2x-optical-zoom 8MP ultrawide f/2.412mm1/4.0"1.12µm 5MP depth f/2.2 | (quad camera) 48 megapixels 8MP ultrawide f/2.2119°1.0µm 2MP macro f/2.4 2MP depth f/2.4 |
| Main camera resolution | 5656x4240 pixels | 8000x6000 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 30 fps | 4K UHD (3840x2160) 30 fps |
| Flash | LED flash | Dual-LED flash |
| Focal aperture | f/1.7 (aperture) | f/1.8 (aperture) |
| Focal length | 27mm (lens) | feature not registered |
| Sensor size | 1/2.8" inches | 1/2" inches |
| Pixel size | 0.9µm 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 | Digital and optical zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
| BSI sensor | Not supported | Not supported |
| HDR | HDR photo on both cameras | HDR photo on both cameras |
| Camera extras | feature not registered | 1080p@960fps |
📸 Front camera | ||
| Galaxy A9 2018 (SM-A920F/DS 128GB/6GB) | Xiaomi Poco X3 Pro (J20SI 128GB) | |
| Front camera (secondary) | 24 megapixels | 20 megapixels |
| Front camera resolution | 5656x4240 pixels | 5184x3840 pixels |
| Video recording (secondary) | Full HD (1920x1080) | Full HD (1920x1080) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.0 (aperture) | f/2.2 (aperture) |
| Focal length | 27mm (lens) | feature not registered |
| Sensor size | 1/2.8" inches | 1/3.4" inches |
| Pixel size | 0.9µm pixel | 0.8µm pixel |
🔉 Sound and multimedia | ||
| Galaxy A9 2018 (SM-A920F/DS 128GB/6GB) | Xiaomi Poco X3 Pro (J20SI 128GB) | |
| Loudspeaker | Supported | Stereo sound with dual speakers |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | FM | 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 | ||
| Galaxy A9 2018 (SM-A920F/DS 128GB/6GB) | Xiaomi Poco X3 Pro (J20SI 128GB) | |
| USB | USB 2.0 Type-C, USB OTG On-The-Go | USB 2.0 Type-C, USB OTG On-The-Go |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | USB Type-C (reversible) |
| Bluetooth | 5.0 + A2DP/LE | 5.0 + A2DP/LE |
| 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) + MIMO WiFi Direct, hotspot |
| DLNA | Not supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou |
| NFC | Supported | Not supported |
| Infrared port | Not supported | Supported |
🧭 Sensors | ||
| Galaxy A9 2018 (SM-A920F/DS 128GB/6GB) | Xiaomi Poco X3 Pro (J20SI 128GB) | |
| Sensors | Accelerometer Ambient light sensor ANT+ Compass Fingerprint sensor (rear-mounted) Gyroscope Hall effect Proximity sensor | Accelerometer Ambient light sensor Compass Face unlock 2D Fingerprint sensor (side-mounted) Gyroscope Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Galaxy A9 2018 (SM-A920F/DS 128GB/6GB) | Xiaomi Poco X3 Pro (J20SI 128GB) | |
| Battery type | Li-Ion: lithium-ion (Non removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 3800 mAh | 5160 mAh |
| Charger, watts | 18W Wired fast charging | 33W Wired fast charging |
| Inductive / wireless charging | Not supported | Not supported |
| Talk time autonomy | feature not registered | feature not registered |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| Galaxy A9 2018 (SM-A920F/DS 128GB/6GB) | Xiaomi Poco X3 Pro (J20SI 128GB) | |
| 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: Caviar Black, Lemonade Blue, Bubblegum Pink • Samsung Pay • Dolby Atmos | • Colors: Phantom Black, Frost Blue, Metal Bronze • Silicone Case included • Cooling up to 6 °C • LiquidCool 1.0 Plus |
☢️ Radiation rate | ||
| Galaxy A9 2018 (SM-A920F/DS 128GB/6GB) | Xiaomi Poco X3 Pro (J20SI 128GB) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | 0.27W/kg (head), 0.84W/kg (body) | 0.99W/kg (head), 0.67W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | 0.57W/kg (head), 0.9W/kg (body) |