Apple Mobile & Smartphones
iPhone 6s is not compatible with existing micro-SIM cards.
eSIM stands for “embedded SIM”. It's a standardized SIM chip open to multiple mobile operators globally. (also called eUICC). You do not have to change the SIM even if you change the operator or carrier.
Nano sim adaptor
With the nano sim adaptor you can use your nano sim even in the phones that have larger sim slots.
Advanced nano-coating technology creates a water repellent barrier to help protect against moderate exposure to water such as accidental spills, splashes or light rain. Not designed to be submersed in water, or exposed to pressurized water, or other liquids; Not waterproof.
ColorOS 3.0, based on Android 5.1
ColorOS 3.0, based on Android 5.1 is a special OS created by OPPO electronics. This OS is 25 % faster than previous operating systems, as a result of various optimazation features that are added to improve the efficinecy of the device. It has a unique feature of data saving that saves both battery & data by freezing background apps. It also gives 40% longer battery life by reducing battery consumption as it automatically kills apps which abnomally consume power when the screen is off.
iOS is the world’s most secure and personal mobile operating system with most powerful features.
OxygenOS based on Android Oreo
This features allows you to take two different shots & then mix (overlap) them, to get one final image, resulting in a unique and fun photographic effect
Drag to focus & exposure
In this feature you have to just open your plam towards the camera to take selfies.
Super slow-motion video
Super Slow Motion: 1080p video at 240 fps, 720p video at 480 fps
It is special feature wherein you have to just say "cheese" to take selfies.
A transceiver is a combination transmitter/receiver in a single package. The term applies to wireless communications devices such as cellular telephones, cordless telephone sets, handheld two-way radios, and mobile two-way radios.