If you want longer stated playback, adjustable everyday noise control, and a sport-oriented design for jogging, choose CMF BY NOTHING Buds 2a; if you need stronger stated noise cancellation and a more adaptive approach to changing surroundings, choose Nothing Ear.
For most joggers, I’d start with CMF BY NOTHING Buds 2a: its IP54 rating and up to 35.5 hours of playback with the case make a practical combination. Nothing Ear is the more compelling choice if noise reduction and its adaptive ANC are your priorities. Neither spec sheet establishes which pair stays secure during a run, so fit remains personal.
• CMF BY NOTHING Buds 2a — strength: IP54 protection, stated 8-hour earbud playback, and up to 35.5 hours with the case. Trade-off: its listed ANC is 42 dB, below Nothing Ear’s stated 45 dB.
• Nothing Ear — strength: adaptive ANC with three manually selectable levels and a stated 45 dB noise-cancellation figure. Trade-off: the supplied information does not list an IP rating or specify an earbud-only playback duration.
• CMF BY NOTHING Buds 2a suits a jogger who values a sport-oriented feature set, a longer stated total listening time, and customizable controls.
• Nothing Ear suits someone who puts more weight on adaptive noise control, calls, and switching between a phone and laptop.
• Both offer dual-device connectivity, app-based options, and voice-focused call features, but the sheets do not establish which is more comfortable or secure during exercise.
CMF BY NOTHING Buds 2a: Who It's For
CMF BY NOTHING Buds 2a makes the clearer case for regular active use. It has an IP54 rating, comes with S, M, and L ear tips, and uses 12.4 mm dynamic drivers. The stated battery life is up to 8 hours for the earbuds and 35.5 hours with the case. Those figures make it a practical-looking choice for someone who wants to listen through a run and keep the charging case in a gym bag.
Its 42 dB smart ANC is designed around common listening situations, with adjustable levels and a transparency mode in the Nothing X app. That is useful flexibility for commuting or listening around town. The product also supports dual-device connectivity, so a phone and laptop can both be connected. For calls, it lists four microphones, clear-voice processing, and wind-noise reduction.
I’d choose Buds 2a if exercise suitability, stated battery endurance, and app customization lead my checklist. I’d skip it if the higher listed ANC figure is your deciding factor, or if you want a documented claim about a particularly secure fit while jogging. The IP54 rating is a meaningful product detail, but it does not tell us how the earbuds will feel or stay put in an individual ear.
Nothing Ear stands out for its stated 45 dB hybrid ANC and adaptive behavior. It monitors the seal and can adjust cancellation when it detects leakage; the app also offers three cancellation levels and manual control. That gives it the stronger paper case for someone moving between quieter indoor spaces and noisier surroundings, though neither ANC figure guarantees a specific experience for every wearer.
The 11 mm dynamic drivers, advanced equalizer, and dual-device connectivity make it a versatile option for music, calls, and switching between a phone and laptop. Its stated total playback reaches over 42.5 hours with ANC off, and a 10-minute charge is listed as providing up to 10 hours of playback with ANC off.
I’d lean toward Nothing Ear if noise control, adaptive ANC, and its call and device-switching features matter most. I would be more cautious about choosing it specifically for jogging: the supplied specifications do not give it an IP rating, an earbud-only playback figure, or a claim about exercise fit. That is not proof it is unsuitable for running; it means the available information offers less to assess on those points.
• Best fit for a sport-focused spec sheet → CMF BY NOTHING Buds 2a. It has an IP54 rating and is described as suited to active lifestyles. Neither sheet confirms how securely either model fits during a run.
• Best documented earbud-only battery duration → CMF BY NOTHING Buds 2a. Its sheet gives up to 8 hours for the earbuds, as well as 35.5 hours with the case.
• More adaptive noise control → Nothing Ear. It can respond to detected sound leakage, and the app provides three ANC levels for manual adjustment.
• Best stated total playback with ANC off → Nothing Ear. It lists over 42.5 hours with the case when ANC is off. Buds 2a lists 35.5 hours with the case; the figures are not given under identical conditions.
• For calls where wind handling matters → compare the stated mic features, then choose by fit. Buds 2a lists four microphones and wind-noise reduction; Nothing Ear lists six microphones and a dedicated talk microphone with airflow-related wind reduction.
• For two-device use → either. Both list dual-device connectivity, which can help when moving between a laptop and phone.
• Best choice if ChatGPT voice access is a priority → check your phone first. Both sheets mention Nothing X app integration, while Nothing Ear specifies that its ChatGPT feature requires a Nothing-series phone.
How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-18 · 12 min read · Independent comparison
The same distinction matters if you are looking for the “best bluetooth earbuds for jogging” or a “multipoint bluetooth headset for jogging.” Both support connecting to two devices, but multipoint convenience does not settle fit or exercise suitability. Buds 2a gives more concrete jogging-related details; Nothing Ear gives more specific information about adaptive cancellation and fast charging. I would weigh those features against how you plan to use the earbuds rather than treating either as an automatic running winner.
I would choose CMF BY NOTHING Buds 2a for jogging. Its IP54 rating, up to 8 hours of earbud playback, and active-lifestyle positioning give me more relevant information for that use. Nothing Ear is the more attractive pick if I cared most about its higher stated ANC figure and adaptive noise control. But for my stated jogging priority, Buds 2a is the more straightforward choice.
CMF BY NOTHING Buds 2a has an IP54 rating and is positioned for active lifestyles, making its listed features more directly relevant to jogging. Nothing Ear has a higher stated ANC figure, but its supplied specifications do not list an IP rating or exercise-fit claim.
Nothing Ear lists 45 dB hybrid ANC, compared with 42 dB smart ANC for Buds 2a. Nothing Ear also describes adaptive cancellation and three manual levels; the figures alone cannot establish how well either model will cancel noise for a particular wearer.
Buds 2a specifies up to 8 hours for the earbuds and 35.5 hours with the case. Nothing Ear specifies over 42.5 hours total with ANC off, but the provided information does not state its earbud-only duration, and its total figure uses a particular ANC condition.
Yes. Both list dual-device connectivity, allowing connection to two devices. The sheets do not provide enough detail to compare the exact switching behavior between phones, computers, or other devices.
Dao
If you want a sport-oriented design, an IP54 rating, and a stated 8 hours of earbud playback for jogging, choose CMF BY NOTHING Buds 2a; if you need a higher stated ANC figure and adaptive noise control, choose Nothing Ear.
For most joggers, I’d start with CMF BY NOTHING Buds 2a. Its active-lifestyle positioning and stated battery details make it the more straightforward choice for a run. Nothing Ear is the stronger paper option if noise cancellation is your priority. Neither product’s specifications establish how securely it will fit your ears while jogging, so fit remains personal.
• CMF BY NOTHING Buds 2a — strength: IP54 protection, up to 8 hours of earbud playback, and 35.5 hours with the case. Trade-off: its stated ANC figure is 42 dB, below Nothing Ear’s 45 dB.
• Nothing Ear — strength: a higher stated ANC figure, with adaptive cancellation and three manually selectable levels. Trade-off: the supplied information does not list an IP rating or earbud-only playback time.
• CMF BY NOTHING Buds 2a is for joggers who value an exercise-oriented feature set, a listed IP rating, and documented earbud playback time.
• Nothing Ear is for listeners who put more weight on adaptive noise control, calls, and switching between two devices.
• Both support dual-device connectivity and offer app-based features, but the specifications don’t establish which has the more secure running fit.
CMF BY NOTHING Buds 2a makes the more direct case for active use. It has an IP54 rating, includes S, M, and L ear tips, and uses 12.4 mm dynamic drivers. The stated playback time is up to 8 hours for the earbuds and 35.5 hours with the case. That combination should appeal to someone who wants a pair for a run and enough listed battery capacity for regular listening between charges.
Its 42 dB smart ANC is intended for common listening situations. The Nothing X app lets you adjust ANC and use transparency mode, alongside features such as custom EQ and dual-device connectivity. For calls, the listed features include four microphones, clear-voice processing, and wind-noise reduction.
I’d choose Buds 2a if exercise-related details, stated earbud playback, and app customization are high on my list. I’d look elsewhere if the highest listed ANC figure is my deciding factor. And while IP54 is useful information, it doesn’t tell me whether the earbuds will stay secure in my ears during a run.
Nothing Ear’s clearest advantage is its stated 45 dB hybrid ANC and adaptive behavior. It monitors the seal and can adjust cancellation if it detects sound leakage. The app also offers three ANC levels for manual control. Those features make it a compelling option for someone who moves between quieter indoor spaces and noisier surroundings, though a specification alone can’t predict how effective the cancellation will feel to every listener.
The 11 mm dynamic drivers, advanced equalizer, and dual-device connectivity make it versatile for music, calls, and switching between a phone and laptop. For battery life, it specifies over 42.5 hours total with the case when ANC is off. A 10-minute charge is listed as providing up to 10 hours of playback, also with ANC off.
I’d lean toward Nothing Ear if adaptive noise control, calls, and device switching matter most. I’d be more cautious about choosing it specifically for jogging: the supplied specifications don’t give an IP rating, an earbud-only playback figure, or an exercise-fit claim. That doesn’t establish that it’s unsuitable for running; it simply leaves fewer jogging-related details to weigh.
• More exercise-related details → CMF BY NOTHING Buds 2a. It has an IP54 rating and is positioned for active lifestyles. Neither specification sheet confirms how securely the earbuds fit during a run.
• Higher stated ANC figure → Nothing Ear. It lists 45 dB, compared with 42 dB for Buds 2a. That difference doesn’t guarantee a quieter experience for every wearer.
• Best documented earbud-only playback → CMF BY NOTHING Buds 2a. Its listed earbud playback is up to 8 hours, with 35.5 hours total using the case.
• More adaptive noise control → Nothing Ear. It can adjust cancellation based on detected sound leakage, and its app offers three manual levels.
• Higher stated total playback with ANC off → Nothing Ear. It lists over 42.5 hours with the case when ANC is off. Buds 2a lists 35.5 hours; the figures are not presented under identical conditions.
• For calls with wind handling in mind → compare the listed mic features. Buds 2a lists four microphones and wind-noise reduction; Nothing Ear lists six microphones, a dedicated talk microphone, and features designed to reduce wind interference.
• For connecting to two devices → either. Both list dual-device connectivity, useful if you move between a phone and laptop.
• For ChatGPT access → check your phone compatibility. Both sheets mention Nothing X app integration, while Nothing Ear specifies that its ChatGPT feature requires a Nothing-series phone.
If you’re searching for the “best noise cancelling headphones for jogging,” I wouldn’t make the ANC figure the only deciding factor. The right choice also depends on fit and how much awareness of your surroundings you want. Buds 2a has more explicit exercise-related information; Nothing Ear has the higher stated ANC figure but no listed IP rating. Neither specification sheet says either pair blocks every sound, so think about your running environment before prioritizing noise reduction.
The same distinction matters if you’re looking for the “best bluetooth earbuds for jogging” or a “multipoint bluetooth headset for jogging.” Both products support connecting to two devices, but that convenience doesn’t settle questions about running fit or water and dust protection. Buds 2a offers more concrete jogging-related details; Nothing Ear provides more detail about adaptive cancellation and fast charging. I’d choose based on which of those priorities matters most to my routine.
I’d choose CMF BY NOTHING Buds 2a for jogging. Its IP54 rating, stated 8-hour earbud playback, and active-lifestyle positioning give me more relevant information for that use. Nothing Ear would be my pick if adaptive noise control and its higher stated ANC figure mattered more. For a running-focused choice, Buds 2a is the clearer fit on paper.
FAQ
CMF BY NOTHING Buds 2a has an IP54 rating and is positioned for active lifestyles, so its listed features speak more directly to jogging. Nothing Ear has a higher stated ANC figure, but the supplied specifications don’t list an IP rating or an exercise-fit claim.
Nothing Ear lists 45 dB hybrid ANC, while Buds 2a lists 42 dB smart ANC. Nothing Ear also describes adaptive cancellation and three manual levels, but those specifications can’t establish how well either model will cancel noise for a particular wearer.
Buds 2a specifies up to 8 hours for the earbuds and 35.5 hours with the case. Nothing Ear specifies over 42.5 hours total with ANC off, but the provided information doesn’t list its earbud-only playback time. The total figures use different stated conditions.
Both list dual-device connectivity, so each can connect to two devices. The specifications don’t provide enough detail to compare exactly how switching works between a phone, computer, or other devices.
• CozyPhones Fleece Sleep Headphones vs Kidrox Tiger-Ear
As an Amazon Associate I earn from qualifying purchases.
We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon and affiliated sites.
When you buy through links on this page, we may earn a commission from qualifying purchases at no extra cost to you.
Amazon and the Amazon logo are trademarks of Amazon or its affiliates. This site is an independent third-party review and is not affiliated with, endorsed by, or sponsored by Amazon or the product brands mentioned.