These two barely compete on the same terms. Buy the Wallbox Pulsar Plus for full 48-amp speed in one of the smallest boxes made, with a scheduling app. Buy the Grizzl-E Classicfor a sealed, cast-aluminum, UL-certified 40-amp box with no app to fail — the anti-gadget pick that just charges.
One is a compact smart charger; the other is a rugged dumb one. The decision maps cleanly onto whether you want software and speed or simplicity and durability. We compile published specs, safety listings and owner reports and do the math — we have not bench-tested either unit.
Speed
The Wallbox is faster: 48 amps hardwired versus the Grizzl-E's fixed 40. The gap only appears if you hardwire the Wallbox on a 60-amp circuit and your car accepts the current; on a plug-in install both cap at 40. For overnight charging, both fill the car by morning.
Size vs build
The Wallbox's pitch is footprint — it is one of the smallest 48-amp chargers made, ideal for a crowded wall. The Grizzl-E's pitch is the enclosure: a cast-aluminum, UL-certified box rated for indoor and outdoor use, genuinely rugged and built to outlast plastic-bodied rivals. Small versus tough, and both claims are real.
Smart vs simple
The Wallbox has a scheduling and power-sharing app (though its app has drawn more owner complaints than its hardware). The Grizzl-E has no app at all— no Wi-Fi, no cloud, nothing to lose support or troubleshoot. If you want off-peak scheduling and energy data, the Wallbox; if you want a charger that just works for a decade with nothing to fail, the Grizzl-E.
Value
The Grizzl-E generally costs less and spends its budget on the enclosure; the Wallbox sits higher and spends it on compact engineering and the app. If price and durability lead, the Grizzl-E; if you need 48 amps in a small box and want scheduling, the Wallbox.
The one-line split: the Wallbox is small, fast, and connected; the Grizzl-E is rugged, simple, and cheaper. Decide whether you want a compact smart charger or a no-app tank.
The verdict
Choose the Wallbox Pulsar Plus if wall space is tight, you want 48-amp speed, and you will use the app. Choose the Grizzl-E Classic if you want a rugged, no-app charger that will still be working long after some smart units have lost app support, at a lower price. Both are UL-listed; the deciding question is software-and-size versus simplicity-and-durability. See both in our home charger roundup.