I’ve tested hundreds of gadgets over the years – these 10 I always keep handy


A selection of tools on a keychain.

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I’ve collected my fair share of multitools and gadgets, but I’ve lost track of how often I’ve needed one — only to realize it’s sitting at home or in the car. It’s just not practical to carry around a full toolbox everywhere I go. 

What I do have with me almost all the time, though, is my keychain — and it turns out, it’s the perfect way to keep essential tools within reach.

Also: The best $5 I’ve spent this year is on these breakaway USB-C connectors that overdeliver

My keychain is the one bit of kit I get asked the most questions about. People are often surprised at the things I carry around. I guess most people just carry their keys on their keychains. Weird.

Here’s a tour of what I carry on mine. Don’t feel like you need everything on this list. Remember, the beauty of this approach is that you can customize your EDC to suit your needs.

1. KeySmart Air

KeySmart Air

KeySmart/ZDNET

The KeySmart Air is the core of my keychain. This device acts as both the main key loop and also as a way to attach an Apple AirTag to my stuff, so I don’t lose my entire keychain.

If I didn’t need the AirTag carry feature, I’d probably go for the KeySmart Mini (yes, I like KeySmart gear). If you are a Tile user, the KeySmart Max is a good alternative.

2. YubiKey 5C NFC

YubiKey 5C NFC

Adrian Kingsley-Hughes/ZDNET

Hardware security keys are a high-tech, high-security alternative to using text messages and two-factor authentication (2FA) to log in to websites. 

Also: I cracked open cheap charging gadgets from Temu – and it was worse than I expected

This security key from Yubico features both USB-C and NFC, making it suitable for most modern devices, from computers to smartphones and tablets.

3. KeySmart MultiTool, 5-in-1

KeySmart MultiTool

KeySmart/ZDNET

This tiny multitool fits inside the KeySmart Air (and is now almost 50% off, down to $10). It’s a box opener, a mini pry bar, a mini ruler, a flathead screwdriver, and a Phillips head screwdriver. 

4. KeySmart Safe Box Cutter

KeySmart Safe Box Cutter

KeySmart/ZDNET

This handy box cutter is made from tough polyamide plastic and is a safe way to open letters and packages.

Also: 3 security gadgets I never leave home without

However, I use this device in a different way, and find that it’s a handy pry tool for opening electronic devices without damaging the plastic shell of the device.

5. KeySmart NanoScissors

KeySmart NanoScissors

KeySmart/ZDNET

These are retractable, portable, and lightweight scissors that are designed to fit into KeySmart accessories. They’re perfect for cutting threads and fingernails, snipping tags, or slicing zip ties. I’ve been using mine for a year now and they’re still in great condition, and I’ve been cutting things with them that I shouldn’t — such as thin wires and thick plastic.

6. Nite Ize S-Biner SlideLock

Nite Ize S-Biner SlideLock

Nite Ize/ZDNET

This stainless steel S-Biner SlideLock has two gates with sliders that lock securely in place. I find these locks perfect for things that need to be easily removed from the keychain, and they’re far simpler to use than split rings.

7. Lumintop EDC Pico

Lumintop EDC Pico

Lumintop/ZDNET

This tiny rechargeable flashlight has a runtime of 4.5 hours in low-power mode; it’s constructed of tough aircraft-grade aluminum and is water and dust-resistant with an IP68 rating.

Also: This $15 precision screwdriver earned a permanent spot in my repair kit – here’s why

Unlike most tiny flashlights that require a myriad of complicated button presses, this device features a twist cap — twist to activate a low-power beam, twist further to activate a high-power beam. 

This has lived on my keychain for over a year now, and while the black anodization is showing signs of wear, the flashlight is still going strong.

I have started testing the Olight IMINI 2, and that also seems like a superb everyday carry flashlight, and I like the fact that the USB-A connector is integrated into the design. 

8. Gear Aid Glowing Keychain

Gear Aid Glowing Keychain

Gear Aid/ZDNET

This glow-in-the-dark tag makes locating keys a lot easier. The tag is waterproof up to 50 meters, dustproof, and weatherproof. You can also use it for night fishing!

9. KeyUnity Carabiner Clip Multitool

KeyUnity Carabiner Clip Multitool

KeyUnity/ZDNET

This compact multitool keychain packs seven handy functions into a single carabiner. It includes a flathead and slotted screwdriver, seven different hex wrench sizes, a bottle opener, a pry bar, a scraper, a key loop, and a built-in measuring ruler.

Also: Should you buy $15 cordless screwdrivers from Amazon? I tested one, and here’s my advice

10. SIM Tray Tool

SIM tray tool

EagleWireless/ZDNET

I regularly need a SIM tray eject tool, so now I carry this one on my keychain — and it’s now down to just $6. 





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Recent Reviews


Google Maps has a long list of hidden (and sometimes, just underrated) features that help you navigate seamlessly. But I was not a big fan of using Google Maps for walking: that is, until I started using the right set of features that helped me navigate better.

Add layers to your map

See more information on the screen

Layers are an incredibly useful yet underrated feature that can be utilized for all modes of transport. These help add more details to your map beyond the default view, so you can plan your journey better.

To use layers, open your Google Maps app (Android, iPhone). Tap the layer icon on the upper right side (under your profile picture and nearby attractions options). You can switch your map type from default to satellite or terrain, and overlay your map with details, such as traffic, transit, biking, street view (perfect for walking), and 3D (Android)/raised buildings (iPhone) (for buildings). To turn off map details, go back to Layers and tap again on the details you want to disable.

In particular, adding a street view and 3D/raised buildings layer can help you gauge the terrain and get more information about the landscape, so you can avoid tricky paths and discover shortcuts.

Set up Live View

Just hold up your phone

A feature that can help you set out on walks with good navigation is Google Maps’ Live View. This lets you use augmented reality (AR) technology to see real-time navigation: beyond the directions you see on your map, you are able to see directions in your live view through your camera, overlaying instructions with your real view. This feature is very useful for travel and new areas, since it gives you navigational insights for walking that go beyond a 2D map.

To use Live View, search for a location on Google Maps, then tap “Directions.” Once the route appears, tap “Walk,” then tap “Live View” in the navigation options. You will be prompted to point your camera at things like buildings, stores, and signs around you, so Google Maps can analyze your surroundings and give you accurate directions.

Download maps offline

Google Maps without an internet connection

Whether you’re on a hiking trip in a low-connectivity area or want offline maps for your favorite walking destinations, having specific map routes downloaded can be a great help. Google Maps lets you download maps to your device while you’re connected to Wi-Fi or mobile data, and use them when your device is offline.

For Android, open Google Maps and search for a specific place or location. In the placesheet, swipe right, then tap More > Download offline map > Download. For iPhone, search for a location on Google Maps, then, at the bottom of your screen, tap the name or address of the place. Tap More > Download offline map > Download.

After you download an area, use Google Maps as you normally would. If you go offline, your offline maps will guide you to your destination as long as the entire route is within the offline map.

Enable Detailed Voice Guidance

Get better instructions

Voice guidance is a basic yet powerful navigation tool that can come in handy during walks in unfamiliar locations and can be used to ensure your journey is on the right path. To ensure guidance audio is enabled, go to your Google Maps profile (upper right corner), then tap Settings > Navigation > Sound and Voice. Here, tap “Unmute” on “Guidance Audio.”

Apart from this, you can also use Google Assistant to help you along your journey, asking questions about your destination, nearby sights, detours, additional stops, etc. To use this feature on iPhone, map a walking route to a destination, then tap the mic icon in the upper-right corner. For Android, you can also say “Hey Google” after mapping your destination to activate the assistant.

Voice guidance is handy for both new and old places, like when you’re running errands and need to navigate hands-free.

Add multiple stops

Keep your trip going

If you walk regularly to run errands, Google Maps has a simple yet effective feature that can help you plan your route in a better way. With Maps’ multiple stop feature, you can add several stops between your current and final destination to minimize any wasted time and unnecessary detours.

To add multiple stops on Google Maps, search for a destination, then tap “Directions.” Select the walking option, then click the three dots on top (next to “Your Location”), and tap “Edit Stops.” You can now add a stop by searching for it and tapping “Add Stop,” and swap the stops at your convenience. Repeat this process by tapping “Add Stops” until your route is complete, then tap “Start” to begin your journey.

You can add up to ten stops in a single route on both mobile and desktop, and use the journey for multiple modes (walking, driving, and cycling) except public transport and flights. I find this Google Maps feature to be an essential tool for travel to walkable cities, especially when I’m planning a route I am unfamiliar with.


More to discover

A new feature to keep an eye out for, especially if you use Google Maps for walking and cycling, is Google’s Gemini boost, which will allow you to navigate hands-free and get real-time information about your journey. This feature has been rolling out for both Android and iOS users.



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