Attribute | Microsoft Lumia 640 XL Dual SIM × | Acer Liquid X2 × |
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General | ||
Brand | Microsoft | Acer |
Launch | ||
Announced | 2015-03-01 | 2015-04-01 |
Body | ||
Width (mm) | 9 | 8.5 |
Length (mm) | 157.9 | 153.3 |
Height (mm) | 81.5 | 78.8 |
Weight (g) | 171 | 166 |
SIM | Dual SIM (Micro-SIM, dual stand-by) | Triple SIM (Micro-SIM) |
Network | ||
Technology |
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2G bands |
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3G bands |
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4G bands | - |
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Speed |
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Platform | ||
OS | Microsoft Windows Phone 8.1 | Android 5.1 (Lollipop) |
Chipset | Qualcomm MSM8226 Snapdragon 400 (28 nm) | Mediatek MT6753 (28 nm) |
CPU | Quad-core 1.2 GHz Cortex-A7 | Octa-core 1.3 GHz Cortex-A53 |
GPU | Adreno 305 | Mali-T720MP4 |
Memory | ||
Card slot | microSDXC (dedicated slot) | microSDHC (dedicated slot) |
Internal |
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Display | ||
Size (in) | 5.7 | 5.5 |
Resolution (px) | 720 x 1280 | 720 x 1280 |
Protection | Corning Gorilla Glass 3 | - |
Display Type | IPS LCD | IPS LCD |
Battery | ||
Type | Li-Ion | Li-Po |
Capcity (mAh) | 3000 | 4020 |
Main Camera | ||
Main Camera Type | Single | Single |
Main Camera Properties |
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Main Camera Video | 1080p@30fps | 1080p@30fps |
Main Camera Features | Zeiss optics, LED flash | LED flash |
Selfie Camera | ||
Selfie Camera Type | Single | Single |
Selfie Camera Properties |
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Selfie Camera Video | 1080p@30fps | - |
Selfie Camera Features | - | LED flash |
Comms | ||
WLAN | Wi-Fi 802.11 b/g/n, DLNA, hotspot | Wi-Fi 802.11 b/g/n, hotspot |
Bluetooth | 4.0, A2DP | 4.0, A2DP, LE |
GPS | + | + |
NFC | + | - |
Radio | FM radio | 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) | 936 | 820 |
Talk time (h) | Up to 31 h 20 min (2G) / Up to 23 h 40 min (3G) | Up to 23 h (3G) |