Motion Computing J3500 review

Using the optional folding keyboard supplied with our review model you can also use the J3500 as a pseudo laptop/desktop replacement. Just unfold the keyboard, drop in the J3500 and off you go; there's even a touchpad built in, and with the keyboard folded away again, it clips magnetically to the base of the J3500 for transport.

Plus, there's a whole host of similarly ingenious accessories you can add, from the FlexDock - a deskbound docking station that makes it look like a standard monitor when connected - to a standalone battery charger and range of sleeves and cases.

Once you move back outside again, you'll find the sunlight-readable screen another useful touch. And instead of just one battery, you get two, offering both redundancy and hot-swap flexibility: in the event of failure you won't be stuck with a dead laptop, and when one battery runs out in the field you can detach it and insert a spare without having to interrupt your work. There's more too: flip over the J3500 and you'll find a three megapixel documentation' camera on the rear with a light for capturing pictures in low light; look to the side and you'll discover a fingerprint reader; peer inside, and you'll find Intel's top-end Ultimate-N 6300 Wi-Fi module, a mobile broadband modem, a TPM 1.2 security chip and even GPS for geotagging duties.