Magic Speed 5 vs Deviate Nitro 4

The Magic Speed 5 is Asics doing the sensible thing: a carbon-plated running shoe that hands you race-day pop without asking for full super-shoe money. It sits a rung below the Metaspeed Sky racers, so think of it as a carbon tempo shoe and part-time marathon shoe rather than an out-and-out record chaser. At 193g with a 37mm heel and a 7mm drop, it is light and low-slung enough to feel fast, and the FF Turbo foam gives it genuine bounce when you lean into a session. What makes it worth a look is versatility. It will pace a threshold workout on Tuesday, then carry you through a half or a first marathon on Sunday without feeling like overkill. It is not the softest or the most aggressive shoe in its class, but as a one-shoe answer for a runner who wants some carbon assistance across a range of paces, we rate it highly.

The Puma Deviate Nitro 4 is a carbon-plated do-it-all running shoe, and that is the point of it. Puma pitches this as one pair for almost everything: easy miles, tempo work, long runs and the occasional race. At 245g it is heavier than a pure marathon shoe, but that weight buys you a plush, durable ride you can rack up training miles in without babying it. The carbon plate sits under a tall 33.6mm heel and a 7mm drop, so you get a smooth, propulsive roll rather than the aggressive snap of a race-day shoe. In our view this is the sweet spot for one runner who wants a single versatile trainer instead of a rotation. It rewards a controlled tempo more than a flat-out sprint. If you want the widest use per pound at £150, few carbon shoes are as adaptable. The Saucony Endorphin Speed 5 is the obvious rival, and it is lighter, but the Deviate feels the more robust daily companion.