Enabot

Purpose: sending the RankedRobot digest. Nothing else; never sold or shared for marketing.
What we keep: your email address, the date you signed up and the page you signed up on.
How long: until you unsubscribe, when the address is deleted. Before the first issue we email you once to confirm; addresses not confirmed within 30 days are deleted.
Who processes it: stored with Cloudflare, our host, which may process it outside your country. We'll name our email-sending provider in the privacy notice before the first issue.
Your choice: you don't have to subscribe; the only effect of saying no is that you won't get the digest. Unsubscribe any time.

Headquarters: China (as stated on an official page).

Enabot · Companion robots

Weight: 0.3 kg (1 lb)
Runtime: 5.5 h
Mobility: Brushed gear motor drive, speed 20-55 cm/s, max obstacle height ≤6mm, max slope ≤4°, infrared docking with automatic recharge
Subscription: Not disclosed
Price: From US$139

Enabot · Companion robots

Weight: 1.7 kg (4 lb)
Runtime: 2.5 h
Mobility: V-SLAM navigation with route memory, two direct-driven in-wheel motors, top speed 1.5 m/s, infrared docking
Subscription: Not disclosed
Price: From US$789