Comparison of Oppo A31 (2015) and Celkon Q500 Millennium Ultra [S]ave
| Attribute |  Celkon Q500 Millennium Ultra × |  Oppo A31 (2015) × |
|---|---|---|
| General | ||
| Brand | Celkon | Oppo |
| Launch | ||
| Announced | 2014-01-01 | 2015-04-01 |
| Body | ||
| Width (mm) | 8 | 8 |
| Length (mm) | 145.6 | 131.9 |
| Height (mm) | 71.8 | 65.5 |
| Weight (g) | 149 | 135 |
| SIM | Dual SIM | Dual SIM (Nano-SIM/ Micro-SIM, dual stand-by) |
| Network | ||
| Technology |
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| 2G bands |
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| 3G bands |
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| 4G bands | - |
|
| Speed |
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| Platform | ||
| OS | Android 4.4.2 (KitKat) | Android 4.4 (KitKat) |
| Chipset | Broadcom BCM23550 | Qualcomm MSM8916 Snapdragon 410 (28 nm) |
| CPU | Quad-core 1.2 GHz | Quad-core 1.2 GHz Cortex-A53 |
| GPU | - | Adreno 306 |
| Memory | ||
| Card slot | microSDHC | microSDXC (dedicated slot) |
| Internal |
|
|
| Display | ||
| Size (in) | 5 | 4.5 |
| Resolution (px) | 720 x 1280 | 480 x 854 |
| Display Type | IPS LCD | IPS LCD |
| Battery | ||
| Type | Li-Ion | Li-Ion |
| Capcity (mAh) | 2500 | 2000 |
| Main Camera | ||
| Main Camera Type | Single | Single |
| Main Camera Properties |
|
|
| Main Camera Video | Yes | 1080p@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 b/g/n |
| Bluetooth | 4.0, A2DP | 4.0, A2DP |
| GPS | + | + |
| NFC | - | - |
| Radio | FM radio | No |
| 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 | 240 |
| Talk time (h) | Up to 5 h (3G) | Up to 7 h |
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