Philips HeartStart OnSite review
Philips HeartStart OnSite AED (M5066A) with Slim Carry Case
By Tom Calder
The OnSite is the business version of the HeartStart Home: the same size, voice coaching, pads and battery. It's sold for workplaces and public spaces rather than homes, and Philips' manual designates only the Home for over-the-counter sale, so check with the seller whether you'll need a prescription. For a household, the Home is the simpler buy.
- Best for
- An office, church or club that wants the same machine as the Home
- Skip it if
- It's for your home
as of Nov 14, 2026, 5:36 PM ET · Details
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.We earn a commission if you buy through the retailer links on this page. It doesn't change our verdict. How we make money →
Researched, not used. We haven't used this product. This review is built from the maker's specifications, owner reports and our own sizing.
What we like
- Same pads and battery as the Home
- Voice coaching
- 3.3 lb
Worth knowing
- Ask the seller about a prescription
- IP21
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Who shouldn't buy this
Don't buy it if it's for your home: buy the HeartStart Home instead.
Key specs
| Prescription needed? | Check with the seller (see notes) |
| Pad life (maker) | Use-by at least 2 years from manufacture |
| Battery life (maker) | Typically 4 years installed |
| Children | Infant/child pads (prescription only) |
| Weight | 3.3 lb |
This is a Researched review: we haven't used this product. We check every specification against at least two independent sources, re-check the US price on a schedule where we can track it automatically, and say plainly who it isn't for. Commissions never change a rating.
If this isn’t the one
Best for A home or workplace that wants CPR feedback and 5-year pads
as of Nov 14, 2026, 5:36 PM ET · Details
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.Best for Households with children, if you can get the prescription
See the comparison →Best for The lightest AED with the simplest upkeep
See the comparison →