See what's happening smoothly from your smartphone or tablet with the S50 4G LTE cellular security camera, no wiring needed, no wifi needed, data subscription required. Perfectly fit for jobsite, ranch, farm, camping, etc.(Don't support WiFi) Built-in SIM Card & Subscription Plan: Including a pre-installed and prepaid 4G LTE SIM card with 300MB trial data, data plans start at $19.90 monthly to $169.90 yearly per cellular camera security (other data plans available), easily pay in Ubox app.