Opp o A37 never goes hang.it has very awesome desine n looking very smart.the quality of cameras both front and back it shows it’s original strength smooth running well crafted design metallic finish.model is copy of iPhone all features of like iPhone .i have compared their cam by placing next to catcher no competition in terms of looks n camera.a tremendous battery life.i like it.mejor drawback of the phone is vibration mode.a phone will vibrate even when this feature is in off mode in some of the apps like whats app and hike messenger .hope opp o will correct this feature in updates.light weight, good battery, life, sound quality .