The Huawei U8520 Duplex, also known as the Huawei Deuce, was released in October 2011 as one of the earliest dual SIM Android smartphones. Running on Android 2.2 (Froyo), it offered users the flexibility of managing two SIM cards simultaneously—a major advantage at the time. It featured a 3.2-inch TFT display with a 320×480 pixel resolution, providing decent clarity and color accuracy for basic smartphone tasks. Powered by a 600 MHz ARM 11 processor and Adreno 200 GPU on a Qualcomm Snapdragon S1 chipset, the U8520 handled essential functions such as calling, messaging, and media playback efficiently. With 512MB internal storage, 256MB RAM, and support for microSDHC expansion (2GB card included), the phone was well-equipped for casual use.
The Huawei U8520 Duplex included a 3.15MP rear camera capable of 480p video recording, and a VGA front camera for video calls. Connectivity features such as Wi-Fi 802.11 b/g/n, Bluetooth 2.1 with A2DP, and GPS with A-GPS made it a capable travel companion. It also supported FM radio, MP3/MP4 playback, and document viewing, making it versatile for both entertainment and productivity. The 1500mAh removable Li-Ion battery offered up to 7 hours of talk time and 20 hours of music playback, ensuring reliable performance throughout the day. Compact and practical at 109 grams, the U8520 Duplex stood out for combining dual SIM convenience with Android functionality at an affordable price.
Huawei U8520 Duplex Detailed Specs Table
| Category | Specifications |
|---|---|
| Network | GSM / HSPA |
| Launch | Announced 2011, October |
| Status | Discontinued |
| Body Dimensions | 112 x 57 x 12.7 mm (4.41 x 2.24 x 0.5 in) |
| Weight | 109 g (3.84 oz) |
| SIM | Dual SIM (Mini-SIM, dual stand-by) |
| Display Type | TFT, 256K colors |
| Display Size | 3.2 inches, 30.5 cm² (~47.8% screen-to-body ratio) |
| Resolution | 320 x 480 pixels, 3:2 ratio (~180 ppi density) |
| Platform OS | Android 2.2 (Froyo) |
| Chipset | Qualcomm MSM7227-1 Snapdragon S1 |
| CPU | 600 MHz ARM 11 |
| GPU | Adreno 200 |
| Memory (Card slot) | microSDHC (dedicated slot), 2 GB included |
| Internal Memory | 512MB, 256MB RAM |
| Main Camera | 3.15 MP |
| Video (Main) | 480p |
| Selfie Camera | VGA |
| Sound | Loudspeaker, 3.5mm jack |
| WLAN | Wi-Fi 802.11 b/g/n |
| Bluetooth | 2.1, A2DP, EDR |
| Positioning | GPS, A-GPS |
| Radio | Stereo FM radio |
| USB | microUSB 2.0 |
| Sensors | Accelerometer, proximity, compass |
| Multimedia Features | MP3/WAV/eAAC+ player, MP4/H.264 player |
| Extras | Organizer, Document viewer, Photo editor, Voice memo, Predictive text input |
| Battery Type | Removable Li-Ion 1500 mAh |
| Stand-by Time | Up to 120 h (2G) / 120 h (3G) |
| Talk Time | Up to 7 h (2G) / 7 h 30 min (3G) |
| Music Play | Up to 20 h |
| Colors | Black |
| Price | About 110 EUR |
