I brought lenovo ZUK Z1 grey colour last week from amazon, the phone built quality is really good, its bit a large in size if cpmpared to xiomi redmi not3 but still handy, the curvy back provider the benifit for the perfect grif . performance wise it s really good, and is really working good, no heating issues . bettery life is also good; I have sync two email accounts and whatsapp and it lasts for more that one day .display is really good, screen is very smooth, finger print scanner is also working quite satiesfactorily. camera is also good even in low light condition it is working fine as comparedto the camera of similar price ranged phones, but front camera is more impressive and also record 4K video recording