Echo - 2017
List of mobile devices by Echo announced in 2017.

Stellar
Dimensions: 71.5 x 142.8 x 8.15 mm
Weight: 148 g
SoC: MediaTek MT6580
CPU: 4x 1.3 GHz ARM Cortex-A7, Cores: 4
GPU: ARM Mali-400 MP1, 500 MHz
RAM: 1 GB, 533 MHz
Storage: 16 GB
Display: 5 in, IPS, 720 x 1280 pixels, 24 bit
Battery: 2400 mAh, Li-Ion
OS: Android 7.0 Nougat
Camera: 2592 x 1944 pixels, 1280 x 720 pixels, 30 fps

Stellar 4G
Dimensions: 71.5 x 142.8 x 8.15 mm
Weight: 148 g
SoC: MediaTek MT6737
CPU: 4x 1.3 GHz ARM Cortex-A53, Cores: 4
GPU: ARM Mali-T720 MP2, 550 MHz
RAM: 1 GB, 640 MHz
Storage: 16 GB
Display: 5 in, IPS, 720 x 1280 pixels, 24 bit
Battery: 2400 mAh, Li-Ion
OS: Android 7.0 Nougat
Camera: 2592 x 1944 pixels, 1280 x 720 pixels, 30 fps

Holi
Dimensions: 77 x 154.3 x 8.05 mm
Weight: 159 g
SoC: MediaTek MT6737
CPU: 4x 1.3 GHz ARM Cortex-A53, Cores: 4
GPU: ARM Mali-T720 MP2, 550 MHz
RAM: 1 GB, 640 MHz
Storage: 8 GB
Display: 5.5 in, IPS, 720 x 1280 pixels, 24 bit
Battery: 2500 mAh, Li-Ion
OS: Android 7.0 Nougat
Camera: 3264 x 2448 pixels, 1280 x 720 pixels, 30 fps

Flow
Dimensions: 71.5 x 143 x 8.7 mm
Weight: 144 g
SoC: Spreadtrum SC9832
CPU: 4x 1.3 GHz ARM Cortex-A7, Cores: 4
GPU: ARM Mali-400 MP2, 512 MHz
RAM: 1 GB, 533 MHz
Storage: 8 GB
Display: 5 in, IPS, 720 x 1280 pixels, 24 bit
Battery: 2200 mAh, Li-Ion
OS: Android 6.0 Marshmallow
Camera: 2592 x 1944 pixels, 1280 x 720 pixels, 30 fps

Moss
Dimensions: 71.5 x 143 x 8.4 mm
Weight: 132 g
SoC: Spreadtrum SC7731G
CPU: 4x 1.3 GHz ARM Cortex-A7, Cores: 4
GPU: ARM Mali-400 MP2, 400 MHz
RAM: 1 GB, 533 MHz
Storage: 8 GB
Display: 5 in, IPS, 720 x 1280 pixels, 24 bit
Battery: 2000 mAh, Li-Ion
OS: Android 6.0 Marshmallow
Camera: 2592 x 1944 pixels, 1280 x 720 pixels, 30 fps

Plum
Dimensions: 62.5 x 121.6 x 10 mm
Weight: 108 g
SoC: Spreadtrum SC7731G
CPU: 4x 1.3 GHz ARM Cortex-A7, Cores: 4
GPU: ARM Mali-400 MP2, 400 MHz
RAM: 1 GB, 533 MHz
Storage: 8 GB
Display: 4 in, TFT, 480 x 800 pixels, 24 bit
Battery: 1250 mAh, Li-Ion
OS: Android 6.0 Marshmallow
Camera: 2592 x 1944 pixels, 1280 x 720 pixels, 30 fps