Comparison

StopWatt vs other energy-saving products

Different products attack different parts of your electricity use. Here is where a power-factor device sits next to the alternatives.

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Quick answer

If you want data, yes — a whole-home monitor tells you where your kWh actually go and makes any future test far more meaningful.

Category comparison

Product	What it changes	Typical cost	Effort
StopWatt (power-factor device)	Reactive current on nearby motor circuits; small in-home losses	$44.10–$105.84	Plug in once
Smart thermostat	Heating and cooling runtime — usually the largest load in a home	$100–$250	Install + schedule
Energy monitor	Nothing directly; shows you where kWh actually go	$100–$300	Panel install
Smart plugs / timers	Standby and scheduled plug loads	$10–$30 each	Plug in + app
LED retrofit	Lighting consumption, permanently	$2–$10 per bulb	One-time swap

Honest ranking by expected impact

1. HVAC control and sealing — the biggest lever in most US homes.
2. Water heating settings and LED lighting — cheap, permanent wins.
3. Standby load control with smart plugs.
4. Power-factor correction — narrow, technical, worth testing with a guarantee.

Can you combine them?

Yes. StopWatt does not interfere with smart plugs, monitors or thermostats. It is passive and simply shares the circuit.

60-Day Money-Back Guarantee

Test StopWatt for a full billing cycle. Return it within 60 days of delivery for a refund of the purchase price.

Issued by the official StopWatt store · Refund of the purchase price

Frequently asked questions

Should I buy a monitor before StopWatt?

If you want data, yes — a whole-home monitor tells you where your kWh actually go and makes any future test far more meaningful.

Keep reading on the official StopWatt site

Ready to order? Buy StopWatt direct or compare StopWatt bundle pricing.

Order direct from the official store

Ready to try StopWatt risk-free?

Pick the bundle that matches your home size, then complete your order securely on this page — no redirects, no account required.

Sizing rule of thumb: one device per 800–1,200 sq ft, so most homes over 1,500 sq ft use the 3-device bundle.

Order summary

3 StopWatt Devices: $105.84
Shipping (worldwide): Free
Total today: $105.84

3 devices · $35.28 per device

How many 3 Devices bundles?

Everything ships together, still free.

Frequently added

Free worldwide shipping
60-day money-back guarantee
Secure encrypted checkout
Ships in 1–2 business days

60-Day Money-Back Guarantee

Test StopWatt for a full billing cycle. Return it within 60 days of delivery for a refund of the purchase price.

Issued by the official StopWatt store · Refund of the purchase price

Not satisfied? Return it within 60 days for a refund of the purchase price. See our shipping & returns policy.

Checkout — 3 Devices

$105.84

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Charged onceOne-time payment, no subscription
Dispatch1–2 business days, tracked
60 daysReturn for a refund, no questions
Real supportsupport@getstopwatt.net

Prices in USD. The bundle price shown is the full discount — there is no code to hunt for. Add-ons available only here: add 1 extra stopwatt and 3-year replacement protection.