Samsung Galaxy Z Flip4 and Z Fold4 may leave this fast charging speed behind


Samsung’s next-gen foldables continue to come together through various pre-announcement leaks. The latest rumors claim that the Galaxy Z Fold 4 and Galaxy Z Flip 4 will keep the 25W charging that Samsung has put in many of its phones since 2019.
The leak comes from a Chinese 3C certification (via GSMArena) that puts charging at 9 volts and 2.77 amps which, when rounded, indicates that the phones support up to 25W of power. Also listed is the USB Power Delivery spec that tops out at 15W, potentially meaning that the phones will adapt to charge slower when the phones might not need peak charging speeds.
Samsung still includes a charger in the box in China, so these specs only potentially confirm the power of the charger, not necessarily the top speed supported by the phones. We’ve seen some phones from Samsung in the past go up to 45W of charging with the brick that Samsung will happily sell you.
25W fast charging isn’t abysmally slow, but it does pale in comparison to what we’re seeing from some Android competitors. So, while Xiaomi is offering blazing 120W charging, Samsung is stuck just barely above iPhone territory at 25W.
As we approach the typical launch window for the anticipated new foldables, we’ve seen numerous other leaks about design changes, battery expectations, and upgraded cameras. Leaks pointing to a built-in S-Pen have also surfaced, but there is conflicting information out there about whether or not it will be included.
Analysis: quit toying with us, Samsung
Samsung’s charging strategy has been, shall we say, unpredictable. In 2019, the Note 10 Plus debuted the company’s first 45W charging phone, but a 25W charger was instead included in the box. It was still an increase from the 15W charging Samsung typically offered back then and, for its time, was pretty quick. The 45W charging brick, however, costs $50, which is a hefty price to pay for what turned out to be a mixed bag of results.
See, we covered GSMArena’s initial testing of the 45W brick on the new Samsung Galaxy S22 Ultra, and reiterated how strange it was that at almost double the wattage, the phone charged just negligibly faster. Then, we tested the brick ourselves and found that it did, in fact, work as advertised.
As the flagship foldables in Samsung’s lineup, we’d expect their charging capabilities to match that of the S22 Ultra, and would think it strange if they don’t.
Is Samsung trying to preserve long-term battery health on the expensive foldables, or was fast charging simply not very high up on the priority list? Will we see 45W charging actually supported once the phone is announced? That remains to be seen, but we’re not sure how long Samsung’s foldables can stay in 2019 when it comes to fast charging.
Audio player loading… Samsung’s next-gen foldables continue to come together through various pre-announcement leaks. The latest rumors claim that the Galaxy Z Fold 4 and Galaxy Z Flip 4 will keep the 25W charging that Samsung has put in many of its phones since 2019. The leak comes from a…
Recent Posts
- This 1.9-pound smartphone’s massive battery offers six months of standby
- Movie sales – including 4K Blu-ray – fell again last year, but if you’re going streaming only, you’re massively missing out
- A new and dangerous keylogger is on the loose – here’s how to stay safe
- iPhone 16E: all the news on Apple’s new $599 phone
- Pour one out for Apple’s dearly departed home button
Archives
- February 2025
- January 2025
- December 2024
- November 2024
- October 2024
- September 2024
- August 2024
- July 2024
- June 2024
- May 2024
- April 2024
- March 2024
- February 2024
- January 2024
- December 2023
- November 2023
- October 2023
- September 2023
- August 2023
- July 2023
- June 2023
- May 2023
- April 2023
- March 2023
- February 2023
- January 2023
- December 2022
- November 2022
- October 2022
- September 2022
- August 2022
- July 2022
- June 2022
- May 2022
- April 2022
- March 2022
- February 2022
- January 2022
- December 2021
- November 2021
- October 2021
- September 2021
- August 2021
- July 2021
- June 2021
- May 2021
- April 2021
- March 2021
- February 2021
- January 2021
- December 2020
- November 2020
- October 2020
- September 2020
- August 2020
- July 2020
- June 2020
- May 2020
- April 2020
- March 2020
- February 2020
- January 2020
- December 2019
- November 2019
- September 2018
- October 2017
- December 2011
- August 2010