Dual Rear Camera Phones under Rs 15,000

Lenovo uses a Dual camera for Depth, Coolpad Depth, Monochrome similar as Honor, Xiaomi Mi A1 Wideangle, Telephoto also there is a Portrait mode similar to iPhone.

Honor 6X

Honor 6X (Review) features a 5.5-inch Full HD Display powered by a  Kirin 655 Octa-Core processor coupled with 3GB/ 4GB of RAM and 32GB/64GB of internal storage which is further expandable up to 128GB with MicroSD card.On camera, it has a 12MP rear camera with LED Flash, 1.25um Pixel Size, PDAF + 2MP secondary camera and 8MP front-facing camera. Packed with a  3340mAh battery.

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Xiaomi Mi A1

Xiaomi Mi A1 features a 5.5-inch Full HD Display with Corning Gorilla Glass protection powered by 2GHz Octa-Core Snapdragon 625 14nm processor with 650MHz Adreno 506 GPU.On Camera it has a 12MP rear camera with wide-angle lens, 1.25μm pixel size, f/2.2 aperture, dual-tone LED flash, a secondary 12MP camera with telephoto lens, 1.0 μm pixel size, f/2.6 aperture, PDAF and 5MP front-facing camera. Packed with a  3080mAh  battery.Price Rs 14,999. Buy Link

Coolpad Cool Play 6

Cool Play 6 features a 5.5-inch (1920 x 1080 pixels) Full HD IPS in-cell display powered by 1.9GHz Octa-Core Snapdragon 653 Processor. It has 6GB of RAM and 64GB of internal storage, On Camera, it has a 13MP dual rear camera with dual-tone LED flash, f/2.0 aperture, PDAF and 8MP front camera. Packed with a 4060mAh Battery.Camera Performance similar to Cool 1, Also heats up while gaming, No MicroSD slot.
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Coolpad Cool 1

Coolpad Cool 1 features a 5.5-inch 1 (1920 x 1080 pixels) Full HD IPS in-cell display powered by 1.8GHz Octa-Core Snapdragon 652 Processor (MSM8976)  with 4GB of RAM with 32GB of internal storage.On Camera, it has a 13MP dual rear camera with dual-tone LED flash, f/2.0 aperture, PDAF and 8MP front camera with f/2.2 aperture, 80-degree wide-angle lens. Packed with a 4000mAh battery with support for fast charging, No expandable storage, Heating issue, Good camera.

Lenovo K8 Note

Lenovo K8 Note features a 5.5-inch Full HD Display powered by 2.3GHz Deca-core Helio X23 Processor.It comes with a  3/4GB of RAM and 32GB/64GB of internal storage further expandable with MicroSD card On Camera, it has a 13MP + 5MP Dual Rear camera and 13MP Front facing camera with LED Flash. Packed with a 4000mAh Battery with 15W Turbo Charge.

Lenovo K8 Plus

Lenovo K8 Plus features a 5.2-inch full HD Display powered by a MediaTek Helio P25 processor with 3GB of RAM and 32GB of storage On camera, it has a Dual 13-megapixel + 5-Megapixel Rear camera with LED flash and an  8-megapixel shooter for selfies Packed with a 4,000mAh battery.

10.or G Smartphone has a 5.5-inch 1080p 2.5D curved glass screen, Powered by Octa-Core Snapdragon 626 processor with 3GB RAM with 32GB storage, 4GB RAM with 64GB storage.Dual SIM device runs on Android 7.1.2 (Nougat) that will be upgradable to Android 8.0 (Oreo). On Camera, it has a  Dual 13-megapixel rear (RGB + Monochrome) camera with phase detection autofocus (PDAF), LED flash and a 16-megapixel front-facing camera that also has an LED flash.
10.or G has a unibody metal design, comes with a fingerprint on the back. Connectivity options include 4G VoLTE, WiFi 802.11 b/g/n, Bluetooth 4.2, GPS. Packed with a 4000mAh battery.

Infocus Snap 4

Infocus Snap 4 comes with a 5.2-inch OnCell IPS HD display powered by the MediaTek MT6750N processor with 4GB of RAM and 64GB of internal storage that can be expanded via a microSD card.
 Snap 4 comes with a dual camera setup at the rear with a dual LED flash. There is a primary 80-degree 13MP sensor paired with an 8MP 120-degree wide-angle sensor. two 8MP cameras at the front. Packed with a 3,000mAh battery.InFocus Snap 4 is Priced at Rs 11,999

Honor 7X

Honor 7X ( Review) has a 5.93-inch Full HD+ 18:9 2.5D curved glass display with minimal bezels powered by an Octa-Core Kirin 659 processor coupled with 4GB of RAM and 32GB/64GB of internal storage. On camera, it has a 16-megapixel rear camera with a 2-megapixel secondary camera and an 8-megapixel front camera. Both front and the Rear camera has support for the portrait mode. Dual SIM device runs on Android 7.0 (Nougat) with EMUI 5.1. Connectivity options include 4G VoLTE, WiFi 802.11 b/g/n, Bluetooth 4.1 LE, GPS / GLONASS.Honor 7X has a fingerprint sensor on the back Packed with a 3340mAh built-in battery. 64GB model cost Rs 15,999 whereas 32GB cost Rs 12,999. Offers good display, decent camera, and Battery life.

Moto G5s Plus

Moto G5S Plus features a 5.5-inch Full HD display powered by Qualcomm Snapdragon 625 octa-core processor with 4GB RAM and 64GB storage. Dual SIM device runs on Android 7.1.1 Nougat.
Moto G5S Plus has Dual 13MP rear cameras it comes with a Selective focus mode makes it easy to take professional looking portraits on your phone, adding a beautiful blurred background effect. Or have fun trying selective black and white coloring or replace background mode which gives your photos a whole new look. And an 8 MP wide-angle front camera on Moto G5S Plus has LED flash.Packed with a 3000mAh Battery.There is support for Dedicated MicroSD card which was available with Moto G5 Plus, Depth Mode needs to improve overall camera is good.

Xiaomi Redmi Note 5 Pro

Xiaomi Redmi Note 5 Pro has a 5.99-inch FHD+ 18:9 Display powered by Qualcomm Snapdragon 636 Processor with three RAM and storage options 4GB RAM, 64GB Storage,6GB RAM, 64GB Storage. On Camera, it has a Dual Rear 12 MP IMX 486 sensor +5MP color sensor to capture depth information, there is also EIS for videos and 20MP front camera.packed with a 4000mAh Battery

Asus Zenfone Max Pro M1

Asus Zenfone Max Pro M1 comes with Metal body, Fingerprint Scanner on the Rear. It has a 5.99-inch (2160×1080 pixels) Full HD+ 18:9 2.5D curved glass display powered by 1.8GHz Octa-Core Snapdragon 636 Processor. Dual SIM device runs on Android 8.1 Oreo .On Camera, it has a 13 Megapixel primary camera along with 5 Megapixel depth-sensing camera and 8MP front-facing camera both have LED Flash.Packed with a 5000mAh battery

 InFocus Vision 3 Pro

 InFocus Vision 3 Pro has a 5.7-inch HD+ 18:9 2.5D curved glass display with 82.4% screen-to-body ratio powered by Octa-Core MediaTek MT6750 processor with 4GB RAM and 64GB storage.Dual SIM device runs on Android 7.0 (Nougat) with SMILE UX . On Camera, it has a 13-megapixel rear camera along with a secondary 8-megapixel camera with 120-degree wide-angle lens and a 13-megapixel front camera with Face ID to unlock the phone in 0.5 seconds. It also has ‘Dualfie’, which allows users to simultaneously use the front and rear camera and display the image together on the large screen. It offers bokeh effect, beauty mode, and light up screen selfie.Connectivity options include 4G VoLTE, Wi-Fi 802.11 b/g/n, Bluetooth 4.0, GPS, USB OTG Packed with a 4000mAh battery

Micromax Evok Dual Note, ZOPO Speed X  available under Rs 10,000.