Today only. NeweggFlash has a GoPro HERO Session HD Waterproof Action Camera Refurbished Sale with at $69.99 - Expires Soon - with Free Shipping. Rated 4.3 out of 5 on amazon.

Tiny, waterproof, no casing needed. Much better battery life.

The GoPro HERO Session features pro-quality capture. Shoots 1080 at 60 frames per second and 720p100 video, 8MP photos, dual microphones, upto 2 hours battery life, built-in Wi-Fi and Bluetooth, and Protune for photos and video. Waterproof to 131 feet (40m). Get more info at the GoPro site. cnet Review

Optional add-on: GoPro Wi-Fi Remote: control your GoPro's camera functions from up 600' away; wearable design; waterproof up to 33'; built-in LCD mirroring of camera's screen; controls up to 50 cameras at a time; compatible with HERO4 cameras only

GoPro Session Features:

• 8MP video resolution
• Shoots 1440p30, 1080p60, 960p60 and 720p100 fps
• 2x greater audio dynamic range (compared to the HERO3+ Black Edition)
• Built-in WiFi and Bluetooth
• microSD slot up to 64GB cards supported (Class 10 or UHS-1 minimum)

Go Pro HERO Session video