On this page we compare specs HTC Desire 820 dual sim Octa-core (4x1.7 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53) with Oppo A3s Octa-core 1.8 GHz Cortex-A53, we compare external dimensions, compare screens and performance, the amount of RAM and memory for storing media data, battery capacity and characteristics of photo cameras, compare the presence of various sensors and functions.
Hardware and OS | HTC Desire 820 dual sim | Oppo A3s |
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Operating system | Android 4.4.2 (KitKat); Sense UI 6 | Android 8.1 (Oreo); ColorOS 5.1 |
Processor | Octa-core (4x1.7 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53) | Octa-core 1.8 GHz Cortex-A53 |
Chipset | Qualcomm MSM8939 Snapdragon 615 (28 nm) | Qualcomm SDM450 Snapdragon 450 (14 nm) |
GPU | Adreno 405 | Adreno 506 |
Internal memory | 16 GB, 2 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 Desire 820 dual sim | Oppo A3s |
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Type | LCD | IPS LCD |
Size | 5.5" inc | 6.2" inc |
Resolution | 720 x 1280 px | 720 x 1520 px |
Protection | Corning Gorilla Glass 3 | |
Touchscreen | capacitive touchscreen | capacitive touchscreen |
Screen-to-Body Ratio | 67.2% | 81.2% |
Display area | 83.4 cm2 | 95.9 cm2 |
Display aspect ratio | 16:9 (height:width) | 19:9 (height:width) |
Pixel Density | 267 PPI | 271 PPI |
Colors | 16M | 16M |
Connectivity | HTC Desire 820 dual sim | Oppo A3s |
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2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
3G Network | HSDPA 850 / 900 / 1900 / 2100 - EMEA, Asia | HSDPA 850 / 900 / 2100 |
4G Network | LTE band 1(2100), 3(1800), 7(2600), 8(900), 38(2600), 39(1900), 40(2300), 41(2500) - Asia, India | LTE |
Wi-Fi | Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi Direct, DLNA, hotspot | Wi-Fi 802.11 b/g/n, WiFi Direct, hotspot |
Network | GSM / HSPA / LTE | GSM / HSPA / LTE |
SIM card | Dual SIM (Nano-SIM, dual stand-by) | Dual SIM (Nano-SIM, dual stand-by) |
Bluetooth | 4.0, A2DP, aptX | 4.2, A2DP, LE |
Edge | Yes | Yes |
GPRS | Yes | Yes |
GPS | Yes, with A-GPS, GLONASS | Yes, with A-GPS |
NFC | Yes | |
Speed | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps | HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat6 300/50 Mbps |
USB | microUSB 2.0, USB Host | microUSB 2.0, USB On-The-Go |
Camera | HTC Desire 820 dual sim | Oppo A3s |
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Main camera | 13 MP, Single | 13 MP, Dual |
Specs | 13 MP, AF | 13 MP, f/2.2, AF -2 MP, f/2.4, depth sensor |
Features | LED flash, HDR | LED flash, HDR, panorama |
Video | 1080p@30fps, 720p@60fps | 1080p@30fps |
Selfie camera | 8 MP, Single | 8 MP, Single |
Multimedia | HTC Desire 820 dual sim | Oppo A3s |
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3.5 mm Jack | Yes | Yes |
Radio | FM radio | FM radio |
Design | HTC Desire 820 dual sim | Oppo A3s |
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Colors | Marble White, Tuxedo Grey, Santorini White, Milky-way Grey, Tangerine White, Saffron Grey, Flamingo Grey, Blue Misty, Monarch Orange | Red, Dark Purple |
Dimensions | 157.7 x 78.7 x 7.7 mm | 156.2 x 75.6 x 8.2 mm |
Weight | 155 g | 168 g |
Battery | HTC Desire 820 dual sim | Oppo A3s |
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Battery capacity | 2600 mAh, Non-removable Li-Po | 4230 mAh, Non-removable Li-Ion |
Battery life | Stand by time- Up to 424 h (3G) Talking time- Up to 22 h 40 min (3G)
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Other | HTC Desire 820 dual sim | Oppo A3s |
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SAR | SAR EU - 0.14 W/kg (head) | |
Release date | 2014, September | 2018, July |
Sensors | Accelerometer, proximity, compass | Accelerometer, proximity, compass |