The console, and only the console. Both are curved manual treadmills on the same wooden chassis, with 62 slats, a 160 x 45 cm running surface, 180 x 86 x 153 cm on the floor, 160 kg machine weight and a 160 kg user rating. The Sprintbok V2 carries a display built into the handlebar; the Pro carries a larger touchscreen with scenic runs, interval training and pacer mode on it. Every published dimension, slat count and load figure is the same on both, so the Pro is a console upgrade and nothing more.

The belt does not. It is 100% self-powered, driven by the runner through the curve of the deck, with no motor anywhere in the machine. That makes siting it a question of floor space alone, which is the opposite of the NOHrD Citius, a motorised treadmill that does need a mains supply at the machine. If your room's sockets are already committed, both Sprintboks leave them alone.

Interval training, pacer mode and scenic runs. Intervals are set before you step on, so the screen calls the switch between work and rest. Pacer mode holds a target pace in front of you for the length of the piece. Scenic runs put a route on screen for the sessions where you want something to look at more than a structure to follow. All three sit on the console with nothing else to set up.

The pacer shows the pace and you produce it. On a curved manual deck the belt moves only under the force of the stride, so the screen cannot push the belt to a speed and is instead calling a target for your legs to hit. Ease off and the belt slows with you, which is visible on the screen straight away. Everything the console reports is a reading of what you are doing rather than a setting the machine is holding.

160 x 45 cm, roughly 63 x 17.7 in., made up of 62 black slats faced with a linoleum tread surface and carried on an 8 cm wooden frame. It is identical to the standard Sprintbok. The Citius runs a wider and shorter belt at 155 x 60 cm, so belt width is one of the figures worth putting side by side before you choose.

One year from the date of initial shipment, taken to two years on all components and all wooden components by registering within that first year. Spare parts carry 90 days. The cover runs for private and commercial use, and it is voided by accident, abuse, misuse, modification, normal wear and tear, and maintenance done outside the steps in the NOHrD manual.

160 kg, which is 353 lb. The treadmill itself also weighs 160 kg. NOHrD's warranty applies to private and commercial use at that rating, with no separate light-commercial tier to buy. If you need headroom above 160 kg on the deck, the Citius is rated to 250 kg.

62 black slats, each faced with a linoleum tread surface, laid across the curve of the wooden frame. Your shoe meets linoleum on a line of separate hard segments, which is a different footing from the single continuous rubber sheet stretched over rollers on a motorised treadmill. The slat assembly is shared with the standard Sprintbok and does not change across the six wood finishes.

Six, the same set the rest of the NOHrD range is cut in, with Shadow the cheapest way into the Pro and Walnut the dearest. The build, the figures and the console are identical across all six, so nothing about the finish changes what the treadmill does or what it is rated to carry.

180 x 86 x 153 cm of machine, plus run-off space behind the deck for a runner stepping down. Because nothing plugs in, none of that has to sit near a socket and the treadmill can face whichever way suits the room and the screen. Ceiling height is worth a check as well, since a runner on a curved deck stands higher than the 153 cm figure.

It arrives as one package by carrier and is assembled on site. At 160 kg the build happens where the treadmill will stand, so the access route matters more than the floor plan on delivery day. Tell us about stairs, lifts and door widths when you order and we will pass it to the carrier.

They run the same. Both carry the identical curved deck, the same 62 slats and the same 160 x 45 cm surface, and on a self-powered belt the speed comes from the runner in both cases. The Pro's touchscreen changes how a session is structured and displayed, and nothing about how the belt behaves under your feet. Choose it for on-deck programming, and choose the V2 if a handlebar display and app pairing cover what you need.

Decide who drives the belt. The Sprintbok Pro is curved, manual and self-powered, with the runner setting the pace and no outlet involved. The Citius is a motorised flat-belt treadmill that holds a set speed to 30 km/h in 0.1 km/h steps, climbs to a 25% incline, takes a 250 kg user and needs a mains supply at the machine. Gradient work and held speeds point one way; effort-driven running with no electrical work points the other.