However, please note that installing third-party lockscreen replacement apps may cause security and privacy issues to you. So select a lockscreen replacement app wisely and install it at your own risk. For your information, Moto G 4 is a high spec and affordable smartphone. It comes with Fingerprint sensor, 16MP primary camera and 5.5-inch full HD (1920 x 1080) display. It powers Qualcomm 1.5GHz Snapdragon 617 octa-core processor with 550 MHz Adreno 405 GPU, 2GB RAM, 16 GB internal memories and 3000 mAh battery. At the same time, the Blu R1 HD is a very affordable smartphone. It features a 5-inch, curved Gorilla Glass display, a 1.3 GHz quad-core processor, LTE, and an 8MP camera. The storage option is 8GB or 16GB , each paired up with either 1GB or 2GB of RAM. (Source)
