Clover: Best for the longest offline window
Clover Mini and Flex can be configured to take offline payments for up to 7 days, which is the longest window on this page by a wide margin. Against Toast's recommended 24 hours and TouchBistro's 5 days, that is the option for a location where an outage might last days rather than hours.
You also set the limits yourself: a cap per payment and a cap on the total stored while offline. That combination, long window plus two ceilings, lets a rural store stay open through a multi-day outage with a known maximum exposure rather than an open-ended one.
The warning is blunt and it scales with the window. Cards cannot be checked for validity or for funds while offline. Over 7 days of stored payments that is a meaningful amount of unverified card volume, so set the total cap at a number you could absorb losing. Retail Basic lists $349 in hardware with no software fee shown.
Pros
- Up to 7 days offline, the longest here
- Per-payment and total limits you set
- Works on Mini and Flex
Cons
- Cards cannot be checked for validity or funds offline
- Auto-sync behavior not stated
- $349 hardware
Pricing: Retail Basic, $349 hardware, no software fee shown.