| HTC Butterfly 3 |
Oppo A3s |
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| Hardware and OS | HTC Butterfly 3 | Oppo A3s |
| Operating system | Android 5.0 (Lollipop), upgradable to 6.0 (Marshmallow); Sence 7 | Android 8.1 (Oreo); ColorOS 5.1 |
| Processor | Octa-core (4x1.5 GHz Cortex-A53 & 4x2.0 GHz Cortex-A57) | Octa-core 1.8 GHz Cortex-A53 |
| Chipset | Qualcomm MSM8994 Snapdragon 810 (20 nm) | Qualcomm SDM450 Snapdragon 450 (14 nm) |
| GPU | Adreno 430 | Adreno 506 |
| Internal memory | 32 GB, 3 GB RAM | 16 GB, 2 GB RAM |
| External memory | microSD, up to 256 GB (dedicated slot) | microSD, up to 256 GB (dedicated slot) |
| Display | HTC Butterfly 3 | Oppo A3s |
| Size | 5.2" inc | 6.2" inc |
| Type | IPS LCD | |
| Resolution | 1440 x 2560 px | 720 x 1520 px |
| Touchscreen | capacitive touchscreen | capacitive touchscreen |
| Screen-to-Body Ratio | 67.6% | 81.2% |
| Display area | 74.5 cm2 | 95.9 cm2 |
| Display aspect ratio | 16:9 (height:width) | 19:9 (height:width) |
| Pixel Density | 565 PPI | 271 PPI |
| Colors | 16M | 16M |
| Connectivity | HTC Butterfly 3 | Oppo A3s |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 2100 |
| 4G Network | LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 28(700), 38(2600), 40(2300), 41(2500) | LTE |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac, Wi-Fi Direct, DLNA, hotspot | Wi-Fi 802.11 b/g/n, WiFi Direct, hotspot |
| Network | GSM / HSPA / LTE | GSM / HSPA / LTE |
| SIM card | Nano-SIM | Dual SIM (Nano-SIM, dual stand-by) |
| Bluetooth | 4.1, A2DP, aptX | 4.2, A2DP, LE |
| Edge | Yes | Yes |
| GPRS | Yes | Yes |
| GPS | Yes, with A-GPS, GLONASS, BDS | Yes, with A-GPS |
| NFC | Yes | |
| Speed | HSPA, LTE | HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat6 300/50 Mbps |
| USB | microUSB 2.0 (MHL 3.0 TV-out) | microUSB 2.0, USB On-The-Go |
| Camera | HTC Butterfly 3 | Oppo A3s |
| Main camera | 20.2 MP, Single | 13 MP, Dual |
| Specs | 20.2 MP, f/2.2, 28mm (wide), AF -Secondary depth sensor | 13 MP, f/2.2, AF -2 MP, f/2.4, depth sensor |
| Features | Dual-LED dual-tone flash, panorama, HDR | LED flash, HDR, panorama |
| Video | 2160p@30fps | 1080p@30fps |
| Selfie camera | 13 MP, Single | 8 MP, Single |
| Multimedia | HTC Butterfly 3 | Oppo A3s |
| 3.5 mm Jack | Yes | Yes |
| Radio | No | FM radio |
| Design | HTC Butterfly 3 | Oppo A3s |
| Colors | Blue, Red, White | Red, Dark Purple |
| Dimensions | 151 x 73 x 10 mm | 156.2 x 75.6 x 8.2 mm |
| Weight | 161 g | 168 g |
| Battery | HTC Butterfly 3 | Oppo A3s |
| Battery capacity | 2700 mAh, Non-removable Li-Ion | 4230 mAh, Non-removable Li-Ion |
| Battery life | Stand by time- Up to 363 h (2G) / Up to 416 h (3G) Talking time- Up to 26 h (2G) / Up to 21 h (3G) | |
| Other | HTC Butterfly 3 | Oppo A3s |
| Release date | 2015, September | 2018, July |
| Sensors | Accelerometer, gyro, proximity, compass , Infrared port | Accelerometer, proximity, compass |
