2. Oppo R9 Plus: 4000 mAh

Oppo R9 Plus smartphone was launched in the first quarter with a massive 4120mAh non removable battery . This battery smartphone comes with a 6.0-inch display with a resolution of 1080 pixels by 1920 pixels at a PPI of 367 pixels per inch. Oppo R9 Plus specs are powered by 1.8GHz octa-core Qualcomm Snapdragon 652 (MSM8976) processor and 4GB of RAM. The smartphone also packs 64GB of internal storage expandable up to 128GB via a microSD card. Oppo R9 Plus cameras include two 16-megapixel shooters on the rear and on the front. Oppo R9 Plus price falls at Rs. 44990 ($669).

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