Comparison of Allview Impera M and Yezz Billy 4 [S]ave
| Attribute |  Allview Impera M × |  Yezz Billy 4 × |
|---|---|---|
| General | ||
| Brand | Allview | Yezz |
| Launch | ||
| Announced | 2014-10-01 | 2014-06-01 |
| Body | ||
| Width (mm) | 9.9 | 9.9 |
| Length (mm) | 122.5 | 122.5 |
| Height (mm) | 64.4 | 64.4 |
| Weight (g) | 110 | 109 |
| SIM | Dual SIM (Micro-SIM, dual stand-by) | Dual SIM (Micro-SIM) |
| Network | ||
| Technology |
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| 2G bands |
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| 3G bands |
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| Speed |
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| Platform | ||
| OS | Microsoft Windows Phone 8.1 | Microsoft Windows Phone 8.1 |
| Chipset | Qualcomm MSM8212 Snapdragon 200 (28 nm) | Qualcomm MSM8212 Snapdragon 200 (28 nm) |
| CPU | Quad-core 1.2 GHz Cortex-A7 | Quad-core 1.2 GHz Cortex-A7 |
| GPU | Adreno 302 | Adreno 302 |
| Memory | ||
| Card slot | microSDHC | microSDXC (dedicated slot) |
| Internal |
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| Display | ||
| Size (in) | 4 | 4 |
| Resolution (px) | 480 x 800 | 480 x 800 |
| Display Type | TFT | TFT |
| Battery | ||
| Type | Li-Ion | Li-Ion |
| Capcity (mAh) | 1420 | 1300 |
| Main Camera | ||
| Main Camera Type | Single | Single |
| Main Camera Properties |
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| Main Camera Video | 480p | 720p@30fps |
| Main Camera Features | LED flash | LED flash |
| Selfie Camera | ||
| Selfie Camera Type | Single | Single |
| Selfie Camera Properties |
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| Comms | ||
| WLAN | Wi-Fi 802.11 b/g/n, hotspot | Wi-Fi 802.11 a/b/g/n, dual-band, hotspot |
| Bluetooth | 4.0, A2DP, EDR | 4.0, A2DP |
| GPS | + | + |
| NFC | - | - |
| Radio | FM radio | Stereo FM radio |
| USB | microUSB 2.0 | microUSB 2.0 |
| Sound | ||
| Loudspeaker | + | + |
| 3.5mm jack | + | + |
| Features | ||
| Sensors |
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| Misc | ||
| Colors |
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| Stand-by (h) | 200 | 350 |
| Talk time (h) | Up to 6 h 30 min | Up to 7 h (2G) / Up to 4 h 30 min (3G) |
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