Skip to main content
My saved items
MenuSearchMenu
My saved items
Log inJoin
    • My account

    • Manage Account
    • Appointments
    • Log out
  1. Home
  2. Home
  3. Callum Pears
Callum Pears - Senior researcher & writer at Which?

Callum Pears

Senior researcher & writer

Callum pushes tech to its limits and has spent over three years bombarding antivirus with malware, taxing routers and inspecting computer monitors

37 articles
  1. 2026

    1. 02 Nov
      A stylish white speaker sits on a wooden table beside a pink vase with flowers, with sunlight illuminating the scene.

      Best radios

      Radios
    2. 02 Nov
      A family gathered around a wooden table, using various devices: a smartphone, tablets, and a laptop.

      The vital security check to make before buying a smart device

      Computing
    3. 27 Oct
      Stylish turntable on a wooden table, playing a record, with two glasses of yellow drink and a plate of nuts beside it.

      Best record players and turntables

      Record players and turntables
    4. 21 Oct
      AA battery charger displaying a green charging status screen with four inserted batteries on a wooden surface.

      Best AA and AAA rechargeable batteries

      Rechargeable batteries
    5. 15 Oct
      Man with white hair and a pink striped shirt talks on a flip phone while browsing products on a grocery store shelf.

      Best dumb phones and simple phones 2026

      Simple mobile phones
    6. 14 Oct

      Are you paying too much for antivirus?

      Heating & energy
    7. 12 Oct
      Assorted batteries including Duracell, Energizer, and GP Lithium, floating against a pale pink background.

      Best AA and AAA batteries

      Batteries
    8. 28 Sep
      Router in a home

      Recycling your old routers: what you need to know

      Computing
    9. 25 Sep
      A hand holds a black and red USB flash drive, with a blurred background of soft light and a surface below.

      Best USB sticks: fast memory sticks and flash drives reviewed

      External hard drives and USB sticks
    10. 22 Sep
      Mobile phone lanyard and strap cover image

      Add if your headline is more than 50 characters.

      Mobile phones
    11. 31 Jul
      Amazon Kindle, PocketBook and Kobo e-readers lined up

      Best e-readers

      Ebook readers
    12. 17 Jul
      Two women, one wearing a black tank top and the other in a patterned shirt, focus on their smartphones outdoors.

      Best power banks and portable chargers

      Portable power bank chargers
    13. 17 Jul
      A frustrated hand clenches near a router with Ethernet cables connected, while a laptop sits in the background.

      5 reasons your router could be affecting your broadband speed

      Computing
    14. 01 Jul
      Four Wi-Fi routers and network devices on a light blue background, featuring various shapes and designs.

      Best wi-fi routers

      Wi-fi routers and extenders
    15. 26 Jun
      Various network devices, including a mesh router, extenders, and smart speakers in differing designs.

      Best mesh networks and wi-fi extenders 2026

      Wi-fi routers and extenders
    16. 07 May
      Colorful digital shield icon on a circuit board background, symbolizing cybersecurity and data protection.

      Best antivirus software 2026

      Antivirus software packages
    17. 22 Apr
      Laptop displaying a warning message about a virus detected, with a person's hand on the keyboard and a coffee cup nearby.

      How to get rid of a computer virus

      Computing
    18. 16 Apr
      Woman with headphones smiles while participating in a video call on a monitor, surrounded by books and a plant.

      Best computer monitors

      Computer monitors
    19. 30 Mar
      VPN connection established on computer and smartphone

      Best VPNs 2026

      VPN services
    20. 15 Mar

      79% of smart dash cams we tested had security issues

      Car technology