What "smart" actually means
A smart EV charger has Wi-Fi connectivity and a companion app. That unlocks four capabilities:
- Scheduling — set the charger to start and stop at specific times (e.g., charge only from 10pm–6am when rates are lowest)
- Energy monitoring — see exactly how many kWh you've used and what it's cost you
- Remote control — start, stop, or pause charging from your phone
- Smart home integration — some chargers (Wallbox Pulsar Plus) connect to Apple Home, Google Home, or Alexa via Matter
These are real features. The question is whether they're worth $150–300 more than a basic charger for your specific situation.
The one argument that holds up: TOU electricity rates
Time-of-use (TOU) electricity pricing means you pay different rates depending on when you use power. Peak periods (typically 4–9pm on weekdays) cost significantly more than off-peak hours (nights, weekends). In California, peak rates can be 3–5× the off-peak rate.
A smart charger lets you schedule charging to run automatically during off-peak hours — every night, without you thinking about it. A basic charger just starts charging when you plug in, which may be during peak hours if you arrive home at 6pm.
This is the one argument for smart chargers that is unambiguously financial. The scheduling feature pays for itself. Everything else — remote control, energy monitoring, smart home integration — is convenience, not necessity.
The savings math
Let's run the numbers for a typical EV driver in a TOU market:
- Average EV: ~300 Wh/mile efficiency, 12,000 miles/year home-charged = 3,600 kWh/year at home
- California TOU example: peak rate ~$0.55/kWh, off-peak ~$0.18/kWh
- All-peak cost: 3,600 × $0.55 = $1,980/year
- All off-peak cost: 3,600 × $0.18 = $648/year
- Annual savings from scheduling: ~$1,332
Even in a more modest TOU market (e.g., $0.28 peak vs $0.14 off-peak), you'd save $504/year. A smart charger premium of $200 pays off in under 5 months.
Check your utility rate plan: Go to your utility's website and look for "rate plans" or "pricing." If you see "time-of-use," "TOU," "EV rate," or "off-peak pricing," a smart charger will likely save you real money. If you see a flat rate, the math doesn't work in the smart charger's favor.
When to skip the smart charger
Several common situations where a basic charger is the better choice:
- Flat electricity rates — if your utility charges the same price 24/7, scheduling saves nothing. The smart premium is pure cost with no return.
- Tesla owner with flat rates — Tesla's own app handles everything a smart charger does (scheduling, charge limits, monitoring) through the car. A basic charger is just a cable to the wall, and that's all you need.
- Low daily mileage — under 30 miles/day, any Level 2 charger will fully replenish overnight. Even at TOU rates, small volumes limit the savings.
- Reliability preference — smart chargers have one more failure mode: the Wi-Fi or cloud service. The Grizzl-E's appeal is zero failure modes from connectivity — it charges when you plug in, period.
Tesla owners: a specific note
If you own a Tesla, the car's own scheduling system handles off-peak charging — you set it in the Tesla app and the car starts charging at the scheduled time regardless of what charger you're using. A basic J1772 charger (or even the Tesla Wall Connector) lets you use Tesla's scheduling without paying for duplicate smart features in the charger.
The exception: if you have non-Tesla EVs in the household, or want energy data from the charger level (not just the car), a smart charger adds value. But for a pure Tesla household, the car already handles what the charger's app would do.
Smart vs basic charger comparison
| Charger | Price | Amps | Smart | Scheduling | Matter |
|---|---|---|---|---|---|
| Grizzl-E Classic | $269 | 40A | — | — | — |
| Emporia EV Charger | $329 | 48A | ✓ | ✓ | — |
| JuiceBox 32 | $599 | 32A | ✓ | ✓ | — |
| ChargePoint Home Flex | $649 | 50A | ✓ | ✓ | — |
| Tesla Wall Connector | $595 | 48A | ✓ | ✓ | — |
| Wallbox Pulsar Plus | $699 | 48A | ✓ | ✓ | ✓ |
Our verdict
On TOU rates → buy a smart charger. The Emporia EV Charger at $329 is the best value entry point — 48A, full scheduling, energy monitoring. The $320 premium over a Grizzl-E pays off in months if your rates have peak/off-peak variance.
On flat rates → buy the Grizzl-E Classic. At $269, it charges at 40A with zero failure modes. If you just want reliable overnight charging without an app or subscription risk, it's the right call.
Tesla on flat rates → either the Tesla Wall Connector or Grizzl-E. The car handles scheduling. You just need a cable to the wall.
FAQ
No — the chargers listed here don't require subscriptions for basic scheduling and monitoring. ChargePoint has an optional premium plan, but core features are free. JuiceBox and Emporia apps are free for home use with no recurring fees.
It's a real risk with any connected device. JuiceBox's parent company went through a bankruptcy (Enel X Way US) in 2023 — chargers continued working locally but cloud features were disrupted for a period. This is one legitimate argument for basic chargers: no cloud dependency means no service-sunset risk. The Grizzl-E will still charge your car in 2040 regardless of what happens to any company.
Yes — through the car, not the charger. Most EVs have built-in charge scheduling. Tesla, Rivian, Ford, Hyundai, Kia, and many others let you set departure times or charge windows in the vehicle app. A basic charger (Grizzl-E) with Tesla's or your EV's own scheduling achieves the same off-peak charging that a smart charger's app provides.