
It’s impossible to avoid the conversation around kids and mobile phones, and deciding on the right first phone for your child is far from straightforward. Do you opt for a dumbphone – which has all the basics like call and text features without any digital distractions – or choose a smartphone and hope your teen doesn’t find a way around any parental controls you put in place?
The new HMD Fuse aims to offer the best of both worlds. It’s a smartphone that puts parents fully in control. Starting life as a fancy-looking brick phone with no socials or access to apps, you can add and remove features and app access when you feel your kids are ready, all through the parent app on your own phone.
What makes this such an exciting launch is the use of HarmBlock AI – a world first – which prevents children from filming or sending nudes and from seeing or saving explicit images. It’s built into the device, so even the most tech-savvy kid can’t bypass it, and it’s in place for the life of the phone, unless you lift restrictions in the parent app.
So, could this be the answer to a genuinely safe first smartphone for kids? Here’s my full, honest review.
How I tested

I put the HMD Fuse phone to the test for almost three weeks. During this time, I considered how easy it was to use the parent app to set limits and controls on the device, as well as how the HMD Fuse itself performs as a phone for kids. During testing, I asked my kids what they thought, but also assessed its versatility, camera capabilities and its robustness.
HMD fuse

Display: 6.56in, 90Hz, 720 x 1612px
Storage: 128GB
Size: 164.15mm x 75.5mm x 8.32mm
Weight: 202.5g
Colour: Black
Rear camera: 108MP Main Auto Focus with Smart EIS + 2MP Depth
Front camera: 50MP
Why we love it
- Grows with child
- Built-in nudity blocker
- Parents in control of app access
- Looks like a typical smartphone
Take note
- Currently only available through either Vodafone or Three
- Approved contacts not available for third part messaging platforms
Unboxing the HMD Fuse is just like any other Android smartphone. But rather than simply inserting a sim card, switching on and using, the setup was a bit more involved.
First, I needed to download the HarmBlock+ App (available for free from the App Store or Google Play) to my phone and create an account before following the prompts on the HMD Fuse to pair it. To set up the Fuse properly, you will need your child to have a Google account (or set one up for them). Aside from that, the process is relatively straightforward and takes 10 minutes to complete.

The beauty of the HMD Fuse is that it puts you in control of what your child can do or access on their phone, and it’s all managed through the app. I’ve tested dumbphones and restricted-access smartphones for IndyBest, but what stands out about the HMD Fuse is the ability to unlock access as your child gets older.
I also loved the peace of mind that everything is controlled on my phone, so (as long as your phone is password or Face ID-protected), kids are not going to be able to bypass any of the restrictions. I found the parent app intuitive and straightforward to use. All the control settings for the Fuse are accessible on the main hub of the app, and I was able to navigate it with no issues at all.
It's packed with features that make navigating the anxious business of giving your child their first phone – and more independence – a lot easier.
HMD fuse map
One of the features is the HMD fuse map. If you’re sending your child off to secondary school, this feature will be hugely reassuring. Through the map function on the app, you access live tracking of the HMD Fuse, which provides you with a location update every 24 seconds for up to 30 minutes at a time. After this, the feature automatically cuts off to preserve battery, although tracking still runs in the background at longer intervals.
Through the handy Safety Zones function, you can set up to 10 safe areas, such as school or home, and receive alerts when your child enters or leaves these zones. It’s a game-changer when your child gets the school bus for the first time, and you want to make sure they’ve arrived safely. I put this to the test, setting up ‘home’ as a safe area, and I can confirm it works effectively. As soon as my son set off on a dog walk with his dad, a notification pinged on my phone to let me know that he’d left the safe zone.
The phone stores up to three days’ worth of movements, so you can search the tracking history if needed.
HMD fuse whitelist contacts
Another interesting feature is the whitelist contacts. Rather than having to block unwanted numbers, the HMD Fuse allows you to add a list of approved numbers to the phone, including two guardians. Kids can only call or message with the numbers pre-approved in the contact list. If someone not on the list tries to get in touch, they just won’t get through. While I love this function, it’s disappointing that it currently only works for calls and SMS chats – I’d have preferred the feature to extend to third-party messaging platforms too.
HMD fuse school and bedtime mode

You can manage your child’s phone use during school hours and bedtime. You can set a start time and end time, during which time, the device can only be used to access the allowed apps, contact their guardian (by phone call or message) or make an SOS call. This means that if you do allow your child to keep their phone in their room overnight, they won’t be up texting friends – or being disturbed by endless messages – when they should be sleeping. As with all the access controls on the Fuse, I found this easy to set up on the app, and it took seconds to adjust bedtime controls for the weekend.
HMD fuse safe walk
If you select “other limits” in the app hub, you can enable “safe walk”, a genius feature that makes it impossible to use the phone while walking. Yes, it’s hugely annoying for your kids, but amazing for parents or guardians who worry about children walking straight out into the middle of the road when absorbed by their phone.
HMD fuse HarmBlock AI
The HMD Fuse is the world’s first smartphone with this tech that’s been created by online security experts SafeToBet. HarmBlock AI is integrated into the camera and prevents children from filming, live streaming, sending or receiving anything containing nudity. It also automatically blocks any images or videos with nudity that may appear on apps or websites. And, as with all the features on the Fuse, it can only be disabled via the parent app. It’s definitely a feature that offers some more reassurance for when you do decide to allow your child access to WhatsApp and social media as they get older.
HMD fuse apps

Another feature I loved about the HMD fuse is that apps are blocked until enabled, not the other way around. As a parent or guardian, it’s a minefield trying to lock down smartphones to make them safe for kids to use. This device makes it easy. Certain basic apps (camera, files, maps, messages, my device and photos) are already allowed on your child’s device. Other apps installed you can allow access to via a simple toggle switch are Chrome, Drive, FM Radio, Gmail, Google, Google TV, Keep Notes, Meet, Play Store, Safety, YT Music and YouTube. When you feel your child is ready, you can allow them access to the Google Play Store. If they install an app, it will be hidden until you approve it. You can also set daily limits for each app through the parent app. Kids can request extra screen time directly from their phone – you’ll receive a notification on your phone to approve or not.
HMD fuse camera

When I tested dumbphones, the quality of the cameras was really underwhelming. Even with a basic phone, tweens and teens want to be able to take photos, so a decent phone camera is a big plus. That’s where the HMD Fuse differs. It features a high-quality front camera and a rear camera that has portrait, night, time-lapse, panorama and slow-motion modes.
What really caught my nine-year-old’s attention was the case with the flip-up selfie light and the selfie gesture setting, where you can activate a photo timer by making a peace sign, heart fingers or thumbs-up. I was a bit sceptical about this feature, but I tested it out multiple times, using the thumbs up and peace sign gestures, and the ‘3, 2, 1’ countdown started immediately every time. OK, so it’s not going to break the internet, but I think added touches like this make the phone feel a lot more exciting for tweens and teens, particularly when they have no apps to play around on.
Buy now £599.00, Hmd.com
Is the HMD fuse worth it?
In an ever increasingly competitive market, the HMD Fuse genuinely seems to offer something new and different – a realistic alternative to a dumbphone as a first phone. It looks and feels like a smartphone – an important consideration when it’s aimed at image-conscious tweens and teens – but you can lock down the device to start life as a brick phone. I love the convenience and reassurance of having the HMD Fuse controls on my phone and how simple the parent app is to navigate. I’ve always been firmly in the dumbphone camp when it comes to kids’ phones, but honestly, I’ve been won over. While my nine-year-old doesn’t need a phone just yet, the HMD Fuse is definitely the phone I’ll be giving him when he starts secondary school.
How I tested the HMD fuse phone
Having found the best dumphones after countless tests, I’ve learned first-hand how they perform. I employed a similar testing criterion here and focused on the following:
Why you can trust IndyBest reviews
Sarah Dawson is a parenting writer. She’s reviewed everything from the best kids’ school shoes to the best children’s bikes. When it comes to testing the HMD Fuse, she drew on her extensive experience having tested the best dumbphones for IndyBest. As with all IndyBest reviews, Sarah's testing process involves assessing how the products fare under real-world use, factoring in their quality, and any potential pitfalls.
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