Information for the United Kingdom, checked on 18 July 2026. This guide provides general information, not legal advice.
Quick answer
Choose a tool based on the situation. A pull-pin alarm is useful when you want to make noise quickly. Built-in phone SOS is designed for contacting emergency services. A safety app is more useful when you want to share a journey, arrange a check-in, alert trusted contacts or create a believable reason to leave before a situation becomes an emergency.
Device vs app comparison
| Need | Personal device | Safety app |
|---|---|---|
| Draw attention | Well suited to alarms | Possible, depending on the app |
| Tell trusted contacts | Only on connected devices | Well suited |
| Share live location | Only on connected devices | Well suited |
| Appear not to be alone | Usually no | Well suited to calls or chats |
| Document evidence | Usually no | Well suited if built in |
Pepper spray and UK law
Pepper spray, CS spray and other self-defence sprays are classed as prohibited weapons in the UK. Carrying one for self-defence does not make it legal, and buying one abroad does not make it lawful to bring into the country.
If you want a non-weapon option, consider a personal alarm, the emergency features already built into your phone or watch, live location sharing and a plan for getting home. These tools do different jobs, so it is sensible to use more than one layer.
Calling 999 when you cannot speak
If you need the police but cannot speak, call 999 and listen to the operator. Cough or tap the handset if you can. When the automated Silent Solution message asks, press 55 to show that the call is genuine and be connected to the police. Simply calling 999 and staying silent does not automatically bring help.
Build a routine, not a single-device solution
Draw attention
A pull-pin personal alarm can make a loud noise without requiring you to unlock your phone.
Get emergency help
Know how to call 999 and practise the emergency controls on your phone or smartwatch before you need them.
Keep someone informed
A safety app can share a live journey, start a check-in and update people you trust.
Act before an emergency
A companion call, planned exit and transport arrangement can help you leave while you still have options.
Frequently asked questions
UK law and emergency help
Is pepper spray legal in the UK?
No. Pepper spray, CS spray and other self-defence sprays are prohibited weapons in the UK. Carrying one for personal protection does not create an exception.
What can I legally carry instead of pepper spray in the UK?
A personal alarm is a common non-weapon option. You can also prepare the SOS features on your phone or smartwatch, share your live journey with someone you trust and arrange your route home in advance.
What happens if I call 999 and cannot speak?
Stay on the line and follow the operator's instructions. Cough or tap if you can. If the Silent Solution message asks you to, press 55 so the call can be transferred to the police.
Personal alarms and other devices
What can women use instead of pepper spray?
In the UK, options include a personal alarm, a torch, phone or smartwatch SOS, live location sharing and a plan for getting home. None does exactly the same job, so choose a combination you can use quickly and legally.
What is the best personal safety device for women?
There is no single best device for every situation. A personal alarm is useful for making noise, a smartwatch or phone can place an emergency call, and a safety app can keep trusted people informed. The best setup is one you can reach, operate and practise using.
What is the most effective personal safety device?
The most effective device is the one you will carry and can trigger under stress. Look for simple controls, a reliable battery and a clear result when it is activated, then keep a second option in case your first tool is unavailable.
What is the best personal safety alarm for women?
Choose an alarm you can reach and trigger quickly. Check the activation method, volume, battery, size and whether you will actually keep it on your keys or bag. Test it according to the manufacturer's instructions before relying on it.
Does a personal safety alarm really work?
A loud alarm can attract attention and interrupt a situation, but it cannot guarantee that someone will respond. It also does not normally share your location or tell a trusted contact what is happening, which is why it works best alongside a phone-based plan.
Which is better, Hootie or Birdie?
Both are physical personal alarms. Compare the trigger, volume, battery, size, price and whether you can buy replacement parts in the UK. The better alarm is the one you will keep within reach; neither replaces emergency calling or live location sharing.
Safety apps and Safella
Are there personal safety alarm apps?
Yes. Some apps can sound an alarm, alert trusted contacts, share a live location or start a timed check-in. A phone app may add context and communication, but it does not reproduce the simple pull-and-sound action of a separate siren.
Is a personal alarm better than a safety app?
They solve different problems. A personal alarm makes noise immediately; a safety app can share a route, run a check-in, contact trusted people or help you create an exit before an emergency. Many people use both.
Can a safety app replace self-defence?
No. A safety app cannot guarantee protection and does not replace emergency services, awareness or appropriate training. It can add communication, live location, check-ins and a record of what happened.
Does Safella replace calling 999?
No. Safella is not an emergency service and does not contact the police for you. In immediate danger, call 999. Safella adds tools for trusted contacts, live journeys, check-ins and uncomfortable situations before or around an emergency.
Related Safella features
Make your phone part of your safety routine
Safella complements a physical alarm with calls, route sharing, alerts to trusted contacts and tools for organising evidence.
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