| Physical features | Sony Xperia X Compact (F5321) | Samsung Galaxy A21s (SM-A217F/DSN 64GB/6GB) |
| Model | Xperia X Compact (F5321) | Galaxy A21s (SM-A217F/DSN 64GB/6GB) |
| Other model names | Sony Xperia X Compact Single-Sim, Sony Kugo SS | Galaxy A21s SM-A217F/Dual-Sim NFC (64GB + 6GB RAM) |
| Country or region available | 
(Global, International) | 
Hong Kong |
| Brand | Sony | Samsung |
| Release date | September, 2016 | June, 2020 |
| Depth | 9.5 millimeters (0.37 inches) | 8.9 millimeters (0.35 inches) |
| Size (width x height) | 65 x 129 millimeters (2.56 x 5.08 in) | 75.3 x 163.7 millimeters (2.96 x 6.44 in) |
| Weight | 135 grams (4.73 ounces) | 192 grams (6.72 ounces) |
| Qwerty physical keyboard | Not supported | Not supported |
| Antenna | Internal antenna | Internal antenna |
| Build, materials | feature not registered | Plastic body, glass front |
| Protection against water and others | Not supported | Not supported |
| System (OS) | Sony Xperia X Compact (F5321) | Samsung Galaxy A21s (SM-A217F/DSN 64GB/6GB) |
| Operating system | Android 6.0.1 Marshmallow | Android 10 |
| Firmware update | Android 7.0 Nougat | feature not registered |
| Hardware | Sony Xperia X Compact (F5321) | Samsung Galaxy A21s (SM-A217F/DSN 64GB/6GB) |
| Chipset | 64bit - Qualcomm Snapdragon 650 MSM8956 (28nm) | 64bit - Samsung Exynos 850 Octa (8nm) |
| CPU processor | Hexa-Core, 2 processors:
1.8Ghz Dual-Core ARM Cortex-A72
1.4Ghz Quad-Core ARM Cortex-A53 | Octa-Core, 2 processors:
2Ghz Quad-Core ARM Cortex-A55
2Ghz Quad-Core ARM Cortex-A55 |
| GPU graphical controller | Qualcomm Adreno 510 600Mhz | ARM Mali-G52 MP1 |
| RAM memory | 3GB LPDDR3 | 6GB LPDDR4X |
| Internal storage | 32GB (22GB available) | 64GB (48GB available)
eMMC 5.1 |
| External storage | Until 256GB microSD, microSDXC
(dedicated slot) | Until 512GB microSD, microSDXC
(dedicated slot) |
| Display | Sony Xperia X Compact (F5321) | Samsung Galaxy A21s (SM-A217F/DSN 64GB/6GB) |
| Display type | TFT IPS LCD | TFT PLS |
| Screen size | 4.6" inches | 6.5" inches |
| Screen-to-body ratio | ~69.6% (screen-to-body ratio) | ~82.8% (screen-to-body ratio) |
| Display resolution | 720x1280 pixels | 720x1600 pixels (20:9) |
| Touchscreen | Capacitive Multitouch 10-points | Capacitive Multitouch |
| Pixel density (dot pitch) | 319 PPI | 270 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass 4 | Not supported |
| Display features | feature not registered | 60Hz |
| Mobile networks | Sony Xperia X Compact (F5321) | Samsung Galaxy A21s (SM-A217F/DSN 64GB/6GB) |
| Dual-SIM | Not supported | Dual-SIM Standby - Call active on one sim card
(dedicated slot) |
| SIM card | 1 slot (Single-SIM)
nano-SIM (4FF) | 2 slots (Dual-SIM)
nano-SIM (4FF) |
| Maximum download/upload | 300/50 Mbps | 300/150 Mbps |
| Network technology | 2G, 3G, 4G | 2G, 3G, 4G |
| Frequency, bands | Expand band detailsCollapse 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 800/850/900/1700/1900/2100 | UMTS 850/900/1900/2100 |
| Primary 4G network | LTE Cat6 700/800/850/900/1700/1800/1900/2100/2600 (Bands 1,2,3,4,5,7,8,12,17,19,20,26,28)
TD-LTE 1900/2300/2500/2600 (Bands 38,39,40,41) | LTE Cat7/13 (1, 2, 3, 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+, LTE, LTE-A | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A |
| Secondary 2G network | Not supported | GSM 850/900/1800/1900 |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | Not supported | GPRS, EDGE |
| Calling | Sony Xperia X Compact (F5321) | Samsung Galaxy A21s (SM-A217F/DSN 64GB/6GB) |
| Messaging | SMS (T9), MMS, E-mail, Push mail | SMS (T9), MMS, E-mail, Push mail |
| Speakerphone | Supported | Supported |
| Video calling | Supported | Supported |
| Call control | Voice dialing, Voice recorder, Voice commands | Voice dialing, Voice recorder, Voice commands |
| Camera | Sony Xperia X Compact (F5321) | Samsung Galaxy A21s (SM-A217F/DSN 64GB/6GB) |
| Back camera (main camera) | 23 megapixels | (quad camera)
48 megapixels
8MP ultrawidef/2.21/4"1.12µm123º
2MP macrof/2.4
2MP depthf/2.4 |
| Main camera resolution | 5536x4152 pixels | 8000x6000 pixels |
| Video recording (primary) | Full HD (1920x1080) 60 fps | Full HD (1920x1080) 30 fps |
| Flash | LED flash | LED flash |
| Focal aperture | f/2.0 (aperture) | f/2.0 (aperture) |
| Focal length | feature not registered | 26mm lens |
| Sensor size | 1/2.3" inches | 1/2" inches |
| Pixel size | feature not registered | 0.8µm pixel |
| Autofocus | Autofocus | PDAF: phase detection autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | feature not registered | 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/video only main camera | HDR photo on both cameras |
| 2ª camera | Sony Xperia X Compact (F5321) | Samsung Galaxy A21s (SM-A217F/DSN 64GB/6GB) |
| Front camera (secondary) | 5 megapixels | 13 megapixels |
| Front camera resolution | 2592x1944 pixels | 4128x3096 pixels |
| Video recording (secondary) | Full HD (1920x1080) | Full HD (1920x1080) |
| Front flash | Not supported | Not supported |
| Focal aperture | feature not registered | f/2.2 (aperture) |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | 1/3.1" inches |
| Pixel size | feature not registered | 1.12µm pixel |
| Multimedia | Sony Xperia X Compact (F5321) | Samsung Galaxy A21s (SM-A217F/DSN 64GB/6GB) |
| Radio | FM (RDS) | FM |
| TV | Not supported | Not supported |
| Video formats | MP4, H.265, H.264, H.263, XviD | MP4, H.265, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
| Connectivity | Sony Xperia X Compact (F5321) | Samsung Galaxy A21s (SM-A217F/DSN 64GB/6GB) |
| USB | USB 2.0 Type-C reversible connector | USB 2.0 Type-C reversible connector |
| TV output | Not supported | Not supported |
| Audio output | 3.5mm jack | 3.5mm jack |
| Bluetooth | 4.2 + A2DP | 5.0 + A2DP/LE |
| WiFi | 802.11 a/b/g/n/ac (2.4Ghz, 5Ghz) | 802.11 a/b/g/n/ac (2.4Ghz, 5Ghz) + MIMO |
| DLNA | Supported | Not supported |
| NFC | Supported | Supported |
| GPS | A-GPS, GeoTagging, GLONASS, BeiDou | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou |
| Infrared port | Not supported | Not supported |
| Other functions | Sony Xperia X Compact (F5321) | Samsung Galaxy A21s (SM-A217F/DSN 64GB/6GB) |
| Active noise cancellation | Supported | Supported |
| Vibrating alert | Supported | Supported |
| Ringtones | Polyphonic and customized | Polyphonic and customized |
| Web browser | HTML, XHTML, HTML5 | HTML, XHTML, HTML5 |
| Sensors | Accelerometer
Proximity sensor
Compass
Ambient Light sensor
Gyroscope
Barometer
Fingerprint sensor
| Accelerometer
Proximity sensor
Compass
Gyroscope
Face unlock
Fingerprint sensor (rear-mounted)
|
| Other features | - Colors: Black, White, Mist Blue
- USB OTG On-The-Go
- Triluminos 2.5D curved display
- Oleophobic coating
- Fingerprint sensor
- PDAF on back camera
- Sony Exmor RS on back camera
- Sony Exmor R on front camera
- Fast battery charging
- Quick Charge 3.0
- Sony ClearAudio+
- PS4 integration
- WiFi direct, hotspot | - Colors: Black, White, Blue, Red
- One UI 2.0
- WiFi direct, hotspot |
| Power supply | Sony Xperia X Compact (F5321) | Samsung Galaxy A21s (SM-A217F/DSN 64GB/6GB) |
| Battery | Li-Ion: Lithium-Ion (Non removable) | LiPo: Li-Ion polymer (Non removable) |
| Battery capacity | 2700 mAh | 5000 mAh |
| Charger, watts | Standard charging | 15W (9V/1.67A) Fast battery charging |
| Talk time autonomy | 840 minutes | 14 hours | 0.6 day | feature not registered |
| Standby | 45000 minutes | 750 hours | 31.3 days | feature not registered |
| Radiation rate | Sony Xperia X Compact (F5321) | Samsung Galaxy A21s (SM-A217F/DSN 64GB/6GB) |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | 0.422W/kg (head) | 1.544W/kg (body) |