Lyf is Reliance Retail's brand of smartphones that was launched in India in 2016 and now these phones are available with free Reliance Jio SIM and its preview offer. Lyf phones come preloaded with Reliance Jio apps like my Jio, Jio express news, Jio chat, Jionet Hotspot, and others. All Lyf smartphones launched as of 2016 run Google's Android operating system. The company launched smartphones under four sub-brands - Earth, Water, Wind, and Flame. Lyf's latest mobile launch is the C451. The mobile was launched in August 2017. The phone comes with a 4.50-inch touchscreen display with a resolution of 480 pixels by 854 pixels at a PPI of 218 pixels per inch. The Lyf C451 is powered by 1.3GHz quad-core Qualcomm Snapdragon 210 processor and it comes with 1GB of RAM. The phone packs 8GB of internal storage that can be expanded up to 128GB via a microSD card. As far as the cameras are concerned, the Lyf C451 packs a 5-megapixel primary camera on the rear and a 2-megapixel front shooter for selfies. The Lyf C451 runs Android 6.0.1 and is powered by a 2800mAh non removable battery. It measures 139.00 x 66.50 x 9.80 (height x width x thickness) and weigh 165.00 grams. The Lyf C451 is a dual SIM (GSM and GSM) mobile that accepts Micro-SIM and Micro-SIM. Connectivity options include Wi-Fi, GPS, Bluetooth, USB OTG, Headphones, 3G and 4G (with support for Band 40 used by some LTE networks in India). Sensors on the phone include Proximity sensor, Accelerometer and Ambient light sensor.