Technical data sheet
Full Specifications
Network
| Technology | GSM / HSPA / LTE |
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| 2G bands | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
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| 3G bands | HSDPA 2100 |
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| 4G bands | LTE (unspecified) |
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| Speed | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps |
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Launch
| Announced | 2016, June |
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| Status | Available. Released 2016, June |
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Body
| Dimensions | 148.8 x 73.2 x 8 mm (5.86 x 2.88 x 0.31 in) |
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| Weight | 140 g (4.94 oz) |
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| SIM | Dual SIM (Micro-SIM, dual stand-by) |
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Display
| Size | 5.2 inches, 74.5 cm2 (~68.4% screen-to-body ratio) |
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| Resolution | 720 x 1280 pixels, 16:9 ratio (~282 ppi density) |
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Platform
| OS | Android 6.0 (Marshmallow) |
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| Chipset | Mediatek MT6753 (28 nm) |
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| CPU | Octa-core 1.3 GHz Cortex-A53 |
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| GPU | Mali-T720MP3 |
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Memory
| Card slot | microSDHC |
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| Internal | 16GB 2GB RAM |
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Selfie camera
| Single | 13 MP, AF |
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| Video | 1080p@30fps |
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Sound
| Loudspeaker | Yes |
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| 3.5mm jack | Yes |
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Comms
| WLAN | — |
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| Bluetooth | 4.0, A2DP, LE |
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| Positioning | GPS |
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| NFC | No |
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| Radio | FM radio |
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| USB | microUSB 2.0 |
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Features
| Sensors | Fingerprint (rear-mounted), accelerometer, proximity, compass |
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Misc
| Colors | Pink, Gold, Blue, Gray, Black |
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| Models | X521, HOT S, X521_LTE |
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