As expected, Oppo has finally announced its two new mid-range smartphones, the R9 and R9 Plus. The camera-focused smartphones will be available in China, starting March 24 for the Oppo R9 and April 12 for the Oppo R9 Plus, but no word on availability outside China.

The biggest advantage over other smartphones is the 16-megapixel front camera with 78.1-degree wide-angle lens and an f/2.0 aperture, which will make quality selfies . The R9 has a 13 MP rear camera with an f/2.2 aperture, while the R9 Plus packs Sony's 16 MP IMX298 CMOS sensor with an f/2/0 aperture. Both the smartphones support PDAF (phase detection autofocus) and 4K video recording.

Both smartphones have aluminum alloy body, VOOC flash charge and a physical home button with a built-in fingerprint scanner. For a complete list of specs, take a look below.

Oppo R9 specifications

5.5-inch (1080 x 1920 pixels) Full HD AMOLED display

Octa-core (4 x 2.0 GHz + 4 x 1.0 GHz) MediaTek Helio P10 (MT6755) processor with 700MHz Mali T860MP2 GPU

4GB RAM, 64GB internal memory, expandable memory up to 128GB with microSD

Hybrid Dual SIM (nano + nano/microSD)

Android 5.1.1 (Lollipop) with ColorOS 3.0

13MP rear camera with f/2.2 aperture, 5P lens, LED Flash, 80.6-degree wide-angle lens, 4K video recording

16MP front-facing camera, f/2.0 aperture, 78.1-degree wide-angle lens

Fingerprint sensor

Dimensions: 151.8×74.3×6.6mm; Weight: 145g

4G LTE with VoLTE, WiFi 802.11 a/b/g/n (dual-band), Bluetooth 4.0, GPS

2850mAh battery with VOOC Flash Charge

Oppo R9 Plus specifications

6-inch (1080 x 1920 pixels) Full HD AMOLED display

Octa Core Snapdragon 652 (620) processor (Quad 1.8GHz ARM Cortex A72 + Quad 1.2GHz A53 CPUs) with Adreno 510 GPU

4GB RAM, 64GB /128GB internal memory, expandable memory up to 128GB with microSD

Hybrid Dual SIM (nano + nano/microSD)

Android 5.1.1 (Lollipop) with ColorOS 3.0

16MP rear camera with Sony IMX298, PDAF, f/2.0 aperture, 5P lens, LED Flash

16MP front-facing camera, f/2.0 aperture, 78.1-degree wide-angle lens

Fingerprint sensor

Dimensions: 163.1×80.78×7.4mm; Weight: 185g

4G LTE with VoLTE, WiFi 802.11 a/b/g/n/ac (dual-band), Bluetooth 4.1, GPS

4120mAh battery with VOOC Flash Charge