EarFun Air Pro 4 or Nothing Ear (a)? Which has better battery life?
If battery life is your main concern, the EarFun Air Pro 4 lasts longer overall, especially when active noise cancellation (ANC) is turned on. EarFun rates the Air Pro 4 for up to 52 hours with the case and ANC off, compared with 42.5 hours for the Nothing Ear (a). With ANC on, the difference is also meaningful: 35 hours versus 24.5 hours.
For most buyers, that makes the EarFun Air Pro 4 the better choice for battery life. The Nothing Ear (a) still offers solid endurance and faster top-ups, so the choice depends on whether you value maximum total playback or quick charging.
| Battery test | EarFun Air Pro 4 | Nothing Ear (a) |
|---|---|---|
| Earbuds, ANC off | Up to 11 hours | Up to 9.5 hours |
| Total with case, ANC off | Up to 52 hours | Up to 42.5 hours |
| Earbuds, ANC on | Up to 7.5 hours | Up to 5.5 hours |
| Total with case, ANC on | Up to 35 hours | Up to 24.5 hours |
| Quick charge | Up to 2 hours from 10 minutes | Up to 10 hours from 10 minutes, ANC off |
| Wireless charging | Yes | No |
| Available |  | |
The figures above come from manufacturer claims and should not be treated as guaranteed real-world results. Battery life changes with volume, codec, ANC settings, calls, temperature, and other usage conditions.
How Much Longer Does the EarFun Air Pro 4 Last?
The difference is easiest to see when you compare total playback from the charging case.
With ANC turned off, the EarFun Air Pro 4 is rated for 52 hours, while the Nothing Ear (a) is rated for 42.5 hours. That gives the EarFun model a 9.5-hour advantage on paper.
The gap becomes even more useful if you regularly use noise cancellation. EarFun rates the Air Pro 4 for up to 35 hours with ANC, while Nothing rates the Ear (a) for 24.5 hours with ANC. That’s an 10.5-hour difference across the full charging cycle.
For someone who listens for several hours every day, those extra hours can mean fewer trips to the charger.
Earbud-only battery life
The Air Pro 4 also has the advantage when you look only at the earbuds.
EarFun rates each listening session at up to 11 hours with ANC off and 7.5 hours with ANC on. Nothing rates the Ear (a) at up to 9.5 hours with ANC off and 5.5 hours with ANC or Transparency Mode enabled.
In actual testing, results can be lower than these advertised maximums. SoundGuys measured 8 hours and 44 minutes for the Air Pro 4, while TechGearLab measured 7.8 hours under its own test conditions. These tests show why advertised battery figures are best used for comparison rather than as a promise of everyday performance.
What Happens When ANC Is Turned On?
ANC has a noticeable effect on both earbuds, but the EarFun Air Pro 4 maintains a larger endurance advantage.
The Air Pro 4 is rated at 7.5 hours per charge with ANC on, compared with 5.5 hours for the Nothing Ear (a). Across the charging case, the difference grows to 35 hours versus 24.5 hours.
That matters for people who use earbuds on airplanes, buses, trains, or in busy offices. If ANC is almost always enabled, the Air Pro 4 gives you more playback time before you need to recharge.
For example, imagine you listen for about two hours during a commute and another two hours while working. A heavier ANC user will get more breathing room from the EarFun model before needing to put the earbuds back in their case.
Which Has Better Fast Charging?
This is where the Nothing Ear (a) has a strong advantage.
Nothing says a 10-minute charge can provide up to 10 hours of music playback with ANC off. Its official battery information also lists up to 6 hours of playback from the case with ANC on after a 10-minute charge.
The EarFun Air Pro 4 is rated for up to two hours of playback from a 10-minute charge.
So there is an important distinction:
- Longer overall battery: EarFun Air Pro 4
- Longer single-charge battery: EarFun Air Pro 4
- Better battery life with ANC: EarFun Air Pro 4
- More impressive quick-charge claim: Nothing Ear (a)
- Wireless charging: EarFun Air Pro 4
If you often forget to charge your earbuds and need a very quick top-up before leaving home, the Nothing Ear (a)’s fast charging can be more convenient.
Which Is Better for Travel?
For frequent travel, the EarFun Air Pro 4 is the stronger battery choice.
Long flights, road trips, and travel days often mean you cannot recharge your earbuds whenever you want. The larger total capacity of the Air Pro 4’s case gives you more playback between charges.
The Air Pro 4 also supports wireless charging, which gives you another convenient way to recharge the case.
The Nothing Ear (a) can still work well for travel, particularly if you value its fast-charge feature. But if your priority is simply making the battery last as long as possible, EarFun has the edge.
Which Is Better for Everyday Use?
For everyday listening, both models offer enough battery life for many users. The bigger question is how you charge and use your earbuds.
If you normally listen for an hour or two at a time and put the earbuds back in the case between sessions, the difference may not feel dramatic. The charging case gives both models multiple additional charges.
If you spend several hours listening each day, use ANC often, or dislike charging frequently, the Air Pro 4 becomes more appealing because it has the larger battery-life margin.
The Nothing Ear (a), meanwhile, makes more sense for someone who values quick charging. Its 10-minute fast-charge claim is especially useful when you suddenly realize your earbuds are almost empty.
Are the Battery Claims Directly Comparable?
Not perfectly.
Both companies publish battery-life figures under specific laboratory conditions, and the actual result can change depending on how you use the earbuds. Nothing specifically says its Ear (a) figures were measured with AAC music at 50% volume, with the earbuds and case fully charged and other features at default settings.
Independent testing also shows why real-world numbers can differ from advertised maximums. SoundGuys measured 8 hours and 44 minutes from the Air Pro 4, while other testing produced different results.
Things such as higher volume, ANC, calls, Bluetooth settings, temperature, and other features can affect how quickly the battery drains.
So the most useful way to compare these two earbuds is to look at their battery ratings under the same conditions, then consider how you personally use them.
EarFun Air Pro 4 vs Nothing Ear (a): Battery Winner
The EarFun Air Pro 4 wins for battery life.
Its advantage is not limited to the charging case. It also offers longer rated playback from the earbuds themselves, and the gap remains when ANC is enabled. With ANC off, the difference is 52 hours versus 42.5 hours with the case; with ANC on, it is 35 hours versus 24.5 hours.
The Nothing Ear (a)’s main battery advantage is fast charging. A short 10-minute charge can provide up to 10 hours of music playback with ANC off, which can be extremely useful when you’re in a hurry. So the decision is simple:
Choose the EarFun Air Pro 4 if you want the longest overall battery life. Choose the Nothing Ear (a) if quick charging matters more to you than maximum total playback.
Frequently Asked Questions
If you’re still deciding between the EarFun Air Pro 4 and Nothing Ear (a), these common questions can help clear up the main battery-life differences. The answers focus on playback time, ANC use, and fast charging so you can choose the earbuds that better match your daily listening habits.
Does the EarFun Air Pro 4 last longer than the Nothing Ear (a)?
Yes. The EarFun Air Pro 4 is rated for up to 52 hours with its charging case and ANC off, compared with 42.5 hours for the Nothing Ear (a). It also has longer rated battery life with ANC enabled.
Which has better battery life with ANC on?
The EarFun Air Pro 4 has better battery life with ANC on. EarFun rates it for up to 35 hours with the case, while Nothing rates the Ear (a) for up to 24.5 hours.
Is the Nothing Ear (a) better for fast charging?
Yes. The Nothing Ear (a) has the stronger fast-charging specification, with up to 10 hours of music playback from a 10-minute charge when ANC is off. The EarFun Air Pro 4 is rated for up to two hours from a 10-minute charge.
Final Verdict
If your question is strictly EarFun Air Pro 4 or Nothing Ear (a) for battery life, the EarFun Air Pro 4 is the winner. It offers more playback from both the earbuds and charging case, and its advantage becomes even more useful when ANC is active.
The Nothing Ear (a) is still worth considering if you frequently need a quick charge. But for longer listening sessions, travel, and fewer charging breaks, the Air Pro 4 is the better battery-focused pick.
