Key facts
- Unplugging non-essential electronics can reduce household electricity consumption and greenhouse gas emissions.
- Apple's Digital ID feature allows U.S. passport information to be stored on iPhones for domestic airport security checks.
- Using public Wi-Fi without a VPN can expose users to data theft and malware.
- Extreme heat can damage electronic devices, necessitating precautions in hot climates.
- Energy-efficient product choices and built-in energy-saving settings offer greater long-term savings than unplugging most gadgets.
As summer vacation season approaches, travelers are advised to prioritize their digital safety and efficiency. Experts suggest unplugging non-essential electronic devices to reduce 'phantom power' consumption, which can account for up to 10% of household electricity bills and 1% of greenhouse gas emissions. While the savings from unplugging individual modern gadgets may be minimal, Lifu Tan, a research associate at the University of Cambridge, recommends unplugging anything that does not serve a necessary function, while leaving essential appliances like refrigerators running.
For those concerned about connectivity, devices like Wi-Fi routers may need to remain plugged in to support smart home features. However, Natalie Hitchins from the consumer group Which? notes that the most significant long-term energy savings come from selecting energy-efficient products and utilizing their built-in power-saving settings.
In terms of travel convenience, Apple's new 'Digital ID' system allows iPhone users to store U.S. passport information in their Apple Wallet, which can be scanned at over 250 U.S. airports for security checks, though it is not valid for international travel.
When traveling abroad, managing mobile data is crucial to avoid hefty roaming fees. Travelers can opt for international roaming packages from their carriers or utilize international travel eSIMs, which are easily added to newer smartphones. Data security is also paramount; using free public Wi-Fi without a Virtual Private Network (VPN) can expose users to cyber threats. Authorities may also search devices at borders, making it important to secure phones with strong passwords or biometric locks. Additionally, electronic devices are susceptible to damage from extreme heat, so precautions should be taken in hot climates, and users should be mindful of device overheating warnings. Finally, travelers are encouraged to reduce screen time during their trips, with built-in phone features available to help manage usage.