Compare Personal Alarms
Choosing a personal alarm comes down to five things: how loud it is, whether it has a light, how it is powered, how easy it is to carry, and whether it has been independently tested. Here is how popular alarms compare, using each brand's own published details (checked September 2026).
| Ashley Alarm 2 | She's Birdie 3.0 | Defender IIIT | Minder | |
|---|---|---|---|---|
| Siren (brand stated) | 130dB+ | 130dB | 143dB | 140dB |
| Light | 200-lumen strobe plus torch | Strobe plus flashlight | Strobe | Torch on some models |
| Power | USB rechargeable | USB-C rechargeable | 9V battery | Varies by model |
| Carry | Solid metal keychain | Brass keychain | Belt clip / ripcord | Keyring |
| Independent accreditation | Not yet | Not stated | Sold Secure, Secured by Design | Secured by Design |
| Based | UK | US | UK | UK |
How to choose
- Loudness: anything from 130dB is very loud at close range. Brands measure differently, so small differences on paper matter less than whether you will actually carry it.
- Power: rechargeable means no hunting for 9V batteries; battery units never need charging.
- Carry: the best alarm is the one on your keys, not in a drawer.
- Accreditation: police-recognised testing is a useful signal, especially for workplaces buying for staff.
Why people choose Ashley
- 130dB+ siren and 200-lumen flashing strobe
- Pull the pin to start, push it back in to stop
- USB rechargeable: up to 1 year on standby, 60+ minutes of continuous alarm
- Solid metal, silver-plated keychain for keys or a bag
- Rated 4.7/5 from 2,000+ reviews, carried by 130,000+ women
- Designed and owned in the UK. 2-year warranty and 30-day returns
Competitor details are taken from each brand's own website or listings in September 2026 and may change.
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