The Pocket WiFi Extreme doesn't offer extreme speeds, then, but what it does offer is excellent battery life. Vodafone reckons that the Pocket WiFi Extreme is good for up to 10 hours of battery life.

Both “Pocket WiFi SoftBank 203Z” and “Pocket WiFi (GL09P)” support simultaneous connections by as many as 14 users, and are equipped with an 5,000 mAh high-capacity battery, allowing 900 ...