You don't need an invite, but you do have to wait - the OnePlus 3 is not official yet, but teasers are already out and several leaks have provided plenty of spoilers.
The phone passed through GFX Bench and confirmed some of the more salient specs from TENAA. Specifically, the 6GB of RAM paired with a Snapdragon 820 chipset.
There's more - a 5.5" 1080p screen (AMOLED, says TENAA), 16MP main camera weight 4K video and an 8MP/1080p selfie cam, 64GB of storage and Android 6.0 with Oxygen OS.
You can see some "in the wild" photos here, they show a metal unibody and the fingerprint reader/Home key combo. Again, no invites necessary and the OnePlus 3 will be available at pop-up events in several cities around the world (Europe, India, even the US).
Source | Via