Motorola’s been making flip-style phones for a long while, but this year’s different because the longtime smartphone maker is venturing out into new territory with its first-ever notebook-style foldable. In my Motorola Razr Fold review, I specifically mention how it’s the “best foldable phone on the market right now.”
While its rugged design and AI-enhanced camera zooming both certainly play up to that sentiment, it's actually the battery life performance that really drives it home. After putting it through the Tom’s Guide battery drain test, it proves how much better the Razr Fold is compared to its closest competitors.
In fact, it sets a new record among all book-style foldables we’ve ever tested. Here’s why.
How we test
How we test battery life performance
What I really like about the Tom’s Guide battery drain test is that it’s uniformly carried out across every device we review. This allows us to gather objective results that firmly demonstrate actual performance. The test consists of setting a display’s brightness to 150 nits, then running a custom script that simulates continuous web surfing until the battery is completely depleted.
For the Razr Fold (and other notebook-style foldables), we ran the test using the larger main display, seeing that it’s the primary screen users spend most of their time on. This standardized testing allows us to better curate our best phone battery life guide, which tracks the absolute longest-lasting devices on the market.
The results: It's way better than expected
Battery size (mAh) |
Battery life (hrs:mins) |
Charging % in 15 minutes |
Charging % in 30 minutes |
|
Razr Fold |
6,000 mAh |
14:44 |
42% |
75% |
Razr Ultra 2025 |
4,700 mAh |
15:42 |
40% |
72% |
Galaxy Z Fold 7 |
4,400 mAh |
10:55 |
28% |
54% |
Pixel 10 Pro Fold |
5,015 mAh |
12:16 |
28% |
58% |
OnePlus Open |
4,805 mAh |
11:45 |
50% |
85% |
Even though the Galaxy Z Fold 7 is often praised for its rail-thin design, the Razr Fold should also be commended for how it manages to cram a massive 6,000 mAh battery cell into its 4.55mm frame. While that's ever so slightly thicker than the 4.22mm measured thinness of the Z Fold 7, Samsung's foldable only manages to carry a much smaller 4,400 mAh battery.
Running the exact same tests, you can see from the chart above how the Razr Fold completely outlasts the Z Fold 7 — reaching an outstanding average time of 14 hours and 44 minutes, whereas the Z Fold 7 trailed significantly at 10 hours and 55 minutes.
If that’s not enough, the Razr Fold also shows greater endurance than other rivals like the Pixel 10 Pro Fold and OnePlus Open, both of which actually outlasted Samsung’s foldable. To put it simply: the Razr Fold has the longest-lasting battery life of any notebook-style foldable that has ever gone through the Tom’s Guide test.
Bottom line
That says a lot, and you really have to give Motorola credit for getting it right on the first iteration. In fact, the only other foldable phone that lasts longer is the Razr Ultra 2025 with its average time of 15 hours and 42 minutes — which, I might add, is most likely going to be eclipsed by its successor in the Razr Ultra 2026.
In any event, the Razr Fold’s longevity proves that foldable phones can last just as long as their slate counterparts, including the OnePlus 15 that currently owns our record with its 25-hour and 15-minute run time.
Now that I’m about two weeks into using the Razr Fold as my daily driver, I still frequently find it sitting at around the 40% mark by the end of the night. It might not deliver the true two-day battery life I typically got with the OnePlus 15, but it’s nonetheless outstanding for a foldable.
More from Tom's Guide
- Apple WWDC 2026 keynote announced for June 8 — and the invite could be the new Siri
- iPhone Fold achieves 'a visually crease-free state', according to leaker — but fears over the hinge could lead to delays
- Apple's upgraded Siri 2.0 may be almost two years late, but Apple could offer something no other AI chatbot has
