An iPhone 6 unlocked device is one that isn’t restricted to only one carrier. Most iPhone 6 devices sold in some parts of Africa and Asia are already unlocked. Basically, Apple produces the iPhone 6 without carrier restrictions.

However, individual carriers who provide these phones to their customers as a post-paid plan lock them to only work with their sim cards. This iPhone 6 unlocked guide will show you all you should know about the device specs and how to unlock it.
Specifications and Features of iPhone 6 Unlocked.
The iPhone 6 unlocked also comes with the same specs as the normal iPhone 6. This include.
- 7-inch IPS Display, 750 x 1334 pixels (326 ppi)
 - IOS 8, upgradable to iOS 12
 - 8MP rear camera
 - 2MP front camera
 - 1GB RAM
 - Fingerprint sensor
 - Apple A8 Chipset
 - 4G LTE (up to 150Mbps)
 - In-built storage of 16GB, 32GB, 64GB, and 128GB
 - Comes in gold, silver, and grey colors
 - 1810 mAh Li-Po Non-Removable Battery
 
Pricing of iPhone 6 Unlocked
Popular online retailers sell an iPhone 6 unlocked at a starting price of $110.99. The iPhone 6 comes in 16GB, 32GB, 64GB, and 128GB variants, with a starting price of $649.
How to unlock an iPhone 6 locked
If you bought your phone on a post-paid plan with any of the major four carriers in the United States (AT&T, Verizon, T-Mobile, and Sprint), you’ll have to unlock it through that carrier. To release the phone, each carrier has its own method and requirements. Check your carrier’s website for more information.