VnExpress International
The most read Vietnamese newspaper
Vietnamese Edition
| Contact us | Follow us on       
Tech
Tech news Enterprises Personalities Vietnam innovation

Challenge hub

Which Southeast Asian country is the cheapest for buying iPhone 17?

Which Southeast Asian country is the cheapest for buying iPhone 17?

It costs US$940 to buy a 256GB iPhone 17, the lowest-priced model in the latest lineup, in this Southeast Asian country, according to price tracking website Nukeni.
Why you should unplug your phone charger after use?

Why you should unplug your phone charger after use?

Which appliances drive up your electricity bill the most?

Which appliances drive up your electricity bill the most?

Does opening the car hood help cool the engine or EV battery?

Does opening the car hood help cool the engine or EV battery?

Opening the hood of electric or gasoline vehicles to improve cooling offers no real benefits and may pose safety risks, according to experts.
September 8, 2025 | 06:04 am GMT+7
What industry brought Lucy Guo, the youngest self-made female billionaire, her wealth?

What industry brought Lucy Guo, the youngest self-made female billionaire, her wealth?

Lucy Guo earned the title of the world’s youngest self-made female billionaire in April, thanks to her 5% ownership in a $25 billion company she co-founded in a booming sector.
September 5, 2025 | 06:24 am GMT+7
Quiz: Which country offers the world’s cheapest mobile data rates?

Quiz: Which country offers the world’s cheapest mobile data rates?

The average cost of 1GB of mobile data in this country is just US$0.02, the lowest among 5,600 mobile data plans across 237 countries and territories.
September 1, 2025 | 07:05 am GMT+7
5 simple tips to increase your phone lifespan

5 simple tips to increase your phone lifespan

Simple habits such as updating software, protecting hardware, and maintaining battery health can increase a phone’s lifespan, helping users avoid costly upgrades and reduce electronic waste.
August 26, 2025 | 11:24 am GMT+7
Why washer-dryer uses water even when drying

Why washer-dryer uses water even when drying

Washer-dryers consume water when drying as many models use tap water to cool hot, humid air, allowing moisture from clothes to condense and drain away.
August 20, 2025 | 02:57 pm GMT+7
Quiz: Can you guess which country has the fastest mobile network?

Quiz: Can you guess which country has the fastest mobile network?

The country’s mobile carrier e& was named the world’s fastest mobile network in early 2025, according to internet data firm Ookla’s Speedtest Awards.
August 18, 2025 | 11:01 am GMT+7
How everyday appliances can turn into fire hazards

How everyday appliances can turn into fire hazards

Experts have found that 80% of household appliance fires are linked to plugs, power cords and sockets.
August 16, 2025 | 06:38 am GMT+7
5 safety tips to protect your EV and household during home charging

5 safety tips to protect your EV and household during home charging

With home charging common among EV users, experts warn that ignoring key safety tips, such as installing a fuse board and avoiding overcharging, may lead to battery damage or household hazards.
August 1, 2025 | 12:32 pm GMT+7
Nearly 100% electric: Can you guess which country leads the world in EV adoption?

Nearly 100% electric: Can you guess which country leads the world in EV adoption?

Electric vehicles made up 88.9% of all new cars sold in this country in 2024, putting it on track to reach its goal of 100% electric new car sales by 2025.
July 31, 2025 | 11:00 am GMT+7
How to protect your home appliances from storm damage

How to protect your home appliances from storm damage

As storms bring lightning, power surges, and potential flooding, experts stress the importance of unplugging non-essential appliances to prevent damage and ensure safety.
July 22, 2025 | 11:11 am GMT+7
Why you should put a piece of paper on your fridge door this summer

Why you should put a piece of paper on your fridge door this summer

As summer heat rises, a quick paper test on your fridge door can reveal whether a worn seal is affecting its performance, potentially saving energy and preserving your food.
July 21, 2025 | 10:02 am GMT+7
How to keep your phone cool and avoid overheating this summer

How to keep your phone cool and avoid overheating this summer

Hot weather can significantly raise the risk of your phone overheating, which can damage its battery, performance, and overall user experience if not managed properly.
July 18, 2025 | 11:54 am GMT+7
5 common EV battery mistakes to avoid

5 common EV battery mistakes to avoid

Frequent fast charging, letting the battery run too low, and other common mistakes can significantly shorten EV battery life and lead to costly repairs.
July 17, 2025 | 06:11 am GMT+7
6 times using an extension cord could put you at risk

6 times using an extension cord could put you at risk

Experts warn that plugging in refrigerators, running cords outdoors, or charging electric bikes with an extension cord are among six common mistakes that can overheat wires and pose safety risks.
July 15, 2025 | 09:54 am GMT+7
Beat the summer heat: simple trick cools your car fast without air conditioner

Beat the summer heat: simple trick cools your car fast without air conditioner

A fluid dynamics expert has shared a surprisingly simple trick, using airflow from rapidly opening and closing car doors, to quickly cool your parked car in during summer heatwave without air conditioning.
July 11, 2025 | 12:21 pm GMT+7
How to safely use, maintain, and dispose of power bank

How to safely use, maintain, and dispose of power bank

Proper care can extend a power bank’s lifespan, prevent hardware failures, and reduce the risk of fires.
July 9, 2025 | 09:48 am GMT+7
Quiz: What is the best STEM job in the US?

Quiz: What is the best STEM job in the US?

The STEM job offers a median annual salary of $126,260, along with excellent career growth prospects and a better-than-average work-life balance.
July 7, 2025 | 10:26 am GMT+7
View more stories
 
go to top