An urban commuter helmet that Smith describe as "E-bike certified", and unlike most helmets that say something similar, they back it with a named standard rather than a vague claim.
Both Smith's own product page and the Amazon listing state the same certifications: NTA 8776, CPSC and CE EN 1078. EN 1078 is the ordinary European cycle helmet standard and is the floor rather than a feature. NTA 8776 is the Dutch speed-pedelec standard, tested at a higher impact speed with more coverage required, and very few helmets sold in the UK carry it.
*** IT IS STILL NOT A MOTORCYCLE HELMET. *** If your bike exceeds the EAPC limits it is legally a moped, and a moped requires an approved motorcycle helmet. NTA 8776 does not satisfy that, however much tougher it is than a normal cycle helmet. See UK Road Legal (EAPC) for where that line sits.
MIPS is named directly by both Smith and the listing, so this is the licensed slip-plane liner rather than a similar-sounding "rotational protection" system. Smith pair it with Koroyd, a layer of thin crushable tubes that absorb energy on impact while still letting air through. On the Dispatch it is used in zones around the shell rather than as a full liner.
453g in size M, a VaporFit dial adjuster, a Fidlock magnetic buckle you can do up one-handed, and a fixed short brim visor. Smith's AirEvac vents are designed to stop their own glasses fogging. Three sizes: S 51-55cm, M 55-59cm, L 59-62cm.
Smith's own UK store lists the Dispatch at £155 and currently shows it sold out. Amazon stock comes from third-party sellers in small quantities, and size M is only available in white. Check your size is in stock before settling on it.