Grizzl-E Classic vs Grizzl-E Smart: Do You Need the App?
Short answer
Both deliver 9.6 kW on a 50 amp circuit and both use the same heavy cast aluminium enclosure that made the Grizzl-E popular. The Smart adds Wi-Fi, so you can schedule charging to off peak hours and see how much energy you used. If your utility has time of use rates, scheduling pays for itself. If it does not, and your car schedules charging anyway, it does not.
At a glance
| Grizzl-E Classic, 40 A | Grizzl-E Smart, 40 A | |
|---|---|---|
| Maximum output | 9.6 kW at 40 A | 9.6 kW at 40 A |
| Circuit required | 50 A dedicated | 50 A dedicated |
| Wi-Fi | No | Yes |
| Scheduling | From the car only | From the charger or the car |
| Energy reporting | No | Yes |
| Enclosure | Cast aluminium, NEMA 4 | Cast aluminium, NEMA 4 |
Choose the Grizzl-E Classic, 40 A if…
Choose the Classic if you want a unit with nothing in it that can fail or need updating. It plugs the car in and charges it, and that is the whole feature list. Many owners prefer that, particularly on an outdoor wall where a Wi-Fi signal may be weak anyway. Your car almost certainly has its own charging schedule, which covers the main reason people want a connected charger.
Check Grizzl-E Classic, 40 A on Amazon
Choose the Grizzl-E Smart, 40 A if…
Choose the Smart if you are on a time of use tariff and want the charger itself to enforce the schedule, or if you want to see consumption separately from the rest of the house. It is frequently the cheaper of the two, which makes the argument easy. Either way, both need the same 50 amp dedicated circuit installed by a licensed electrician under permit.
Check Grizzl-E Smart, 40 A on Amazon
Related
Comparison based on published manufacturer specifications and the general consensus of owner reports. We have not tested these products side by side. Confirm current specifications and prices before buying. As an Amazon Associate we earn from qualifying purchases, at no extra cost to you.
We review them on their own too, in full detail: the Grizzl-E Classic and the Grizzl-E Smart.
Common questions
Does the charger or the car handle scheduling better?
Either works and using both at once causes confusion, so pick one. Scheduling in the car is more reliable because it knows the state of charge, and scheduling in the charger works across multiple cars and does not depend on the car's connectivity. Whichever you choose, disable the other, since two overlapping schedules is a common reason people wake up to an uncharged car.
What does a NEMA 4 enclosure mean?
It is a rating for protection against dust and water including hose directed water, which is what allows outdoor mounting. Ratings matter for an outdoor installation and they are not all the same, so check the specific rating rather than the word weatherproof. The enclosure ratings chart on this site sets out what each rating actually covers.
Does 40 amps limit my charging?
Only if the car can accept more. A 40 amp circuit delivers 9.6 kW, which adds roughly 30 to 35 miles of range per hour on a typical electric car. Many cars top out at or below that anyway. Work out the hours you actually need from your daily mileage using the charge time calculator rather than buying the largest unit available.
Can I plug either of these into an existing dryer outlet?
Plug in versions exist, and sharing an existing circuit is not a matter of finding an adapter. A dryer circuit is usually 30 amps rather than 50, the outlet type differs, and code generally requires a dedicated circuit for EV supply equipment. Ask a licensed electrician what your specific installation allows before buying anything.
Getting your own panel and load numbers ready for an electrician? The EV Home Charging Install Planner is the paid version of these pages: 8 printable worksheets you fill in with your own numbers, plus the full PDF, $29.
How this page was researched
Specifications come from manufacturer documentation, listed safety certifications and verified owner reviews. We do not perform hands-on product testing and never claim to. Figures are researched planning information, not professional electrical advice. Last reviewed 2026-08-17.