Castles S1F4
The base of the S1F4 family — Android 13, a 5.5-inch screen, a printer and a Magic Box accessory for wired ports.
- Manufacturer
- Castles
- Form factor
- Portable
- Operating system
- Secure Android 13
- Connectivity
- 4G LTE, 3G, 2G, Wi-Fi 2.4 + 5GHz, Bluetooth, USB-C
- Receipt printer
- Built in
The S1F4 is where the family starts: a quad-core A53 at 2.0GHz, Android 13, a 5.5-inch HD+ display, 2GB of RAM and 8GB of flash expandable to 32GB. All three card readers, a 2550mAh battery and a 90mm/sec printer.
Four variants sit above and beside it and the names are not interchangeable. The MAX and PRO move to a 6.745-inch screen and an octa-core processor, the MAX DUO adds a second screen for the customer, the K swaps the touch-only front for a physical keypad, and the CT drops the battery for a countertop body. Only the PRO carries PCI PTS 7.x.
It is 185 x 81 x 57mm and 460g. A Magic Box accessory adds wired connectivity when the site needs it.
What it costs
The rate you pay is negotiated on your volume and card mix, not set by the terminal — two businesses on the same S1F4 can be paying very different money. Find out what yours should be.
Other Castles terminals
Specifications from Castles. Checked 3 October 2026.
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