The CMF Buds Pro 2 vs Nothing Ear 3 comparison brings together two true wireless earbuds from the same Nothing ecosystem, but they target noticeably different types of listeners. The CMF Buds Pro 2 focuses on delivering a feature-rich experience at a more accessible price, while the Nothing Ear 3 pushes further toward premium materials, advanced microphones, enhanced sound, and additional smart features.
CMF Buds Pro 2 comes with an unusual dual-driver setup featuring an 11mm bass driver and 6mm tweeter, up to 50dB hybrid ANC, LDAC support, dual-device connectivity, a customizable Smart Dial, and up to 43 hours of total playback under its rated AAC conditions.
The Nothing Ear 3 takes a more premium approach with a 12mm dynamic driver, up to 45dB ANC, LDAC and LHDC 5.0 support, a dedicated Super Mic system in its charging case, wireless charging, and an aluminum charging case. Nothing rates it for up to 38 hours of total playback with ANC off.
In this comparison, we’ll look closely at design, sound quality, ANC, microphones, battery life, connectivity, comfort, durability, controls, app features, and everyday usability to help you understand which model fits your particular needs.
Feature-by-Feature Comparison Table
Before looking at individual performance areas, the following table provides a quick look at the major differences between CMF Buds Pro 2 and Nothing Ear 3.
| Feature | CMF Buds Pro 2 | Nothing Ear 3 |
| Product positioning | Feature-focused earbuds | Premium true wireless earbuds |
| Driver setup | 11mm + 6mm dual drivers | 12mm dynamic driver |
| ANC | Up to 50dB | Up to 45dB |
| ANC type | Hybrid ANC with Adaptive mode | Adaptive Hybrid ANC |
| Spatial audio | Spatial Audio Effect | Static Spatial Audio |
| Codec support | SBC, AAC, LDAC | SBC, AAC, LDAC, LHDC 5.0 |
| Bluetooth | Bluetooth 5.4 | Bluetooth 5.4 |
| Dual connection | Yes | Yes |
| Microphones | 6 HD microphones | 6 microphones + VPU |
| Special microphone feature | Clear Voice Technology 2.0 | Super Mic |
| Earbud battery | Up to 11 hours ANC off | Up to 10 hours ANC off |
| Total battery | Up to 43 hours | Up to 38 hours |
| ANC-on battery | Up to 6.5 hours per bud | Up to 5.5 hours per bud |
| Wireless charging | No | Yes |
| Water/dust resistance | IP55 earbuds | IP54 earbuds and case |
| Companion app | Nothing X | Nothing X |
| Bass enhancement | Ultra Bass Technology 2.0 | Dynamic Bass Enhancement |
| Controls | Smart Dial + touch controls | Touch controls + case Talk button |
| ChatGPT integration | Yes | Yes |
| Charging | USB-C | USB-C + wireless charging |
| Case material | Compact plastic design | Recycled aluminum + transparent design |
The biggest differences are therefore not simply about sound or ANC. CMF Buds Pro 2 emphasizes value, battery life, dual-driver audio, and the Smart Dial, while Ear 3 adds premium construction, Super Mic functionality, wireless charging, and additional codec support.
Quick Highlights Table
For readers who want the differences at a glance, these are the major strengths of each model.
| Category | CMF Buds Pro 2 | Nothing Ear 3 |
| Sound hardware | Dual-driver configuration | Larger 12mm dynamic driver |
| Bass | Strong, adjustable bass | Enhanced bass with dynamic processing |
| ANC | Up to 50dB | Up to 45dB |
| Calls | 6 HD microphones | Super Mic + VPU |
| Battery | Longer rated total playback | Strong but shorter rated total playback |
| Charging | USB-C | USB-C + wireless |
| Durability | IP55 earbuds | IP54 earbuds and case |
| Connectivity | Bluetooth 5.4, LDAC, dual connection | Bluetooth 5.4, LDAC, LHDC 5.0, dual connection |
| Controls | Smart Dial | Touch controls + Talk button |
| Design | Compact CMF styling | Premium transparent/aluminum styling |
| App | Nothing X | Nothing X |
| Best suited to | Value-focused buyers | Premium-feature seekers |
Key Takeaways
Both earbuds offer considerably more than basic wireless listening. They support modern codecs, ANC, transparency modes, companion-app controls, and multi-device connectivity. However, their priorities are different.
- CMF Buds Pro 2 uses a dual-driver system, combining an 11mm bass driver with a 6mm tweeter.
- Nothing Ear 3 uses a 12mm dynamic driver designed for a more expansive presentation.
- CMF Buds Pro 2 advertises up to 50dB ANC, while Ear 3 advertises up to 45dB.
- CMF Buds Pro 2 offers up to 43 hours of total AAC playback with ANC off under Nothing’s stated test conditions.
- Ear 3 provides up to 38 hours with ANC off according to Nothing’s specifications.
- Ear 3 introduces a dedicated Super Mic built into the charging case.
- CMF Buds Pro 2 has a distinctive Smart Dial for convenient control.
- Both support Bluetooth 5.4 and dual-device connectivity.
- CMF Buds Pro 2 has an IP55 rating for the earbuds, while Ear 3 is rated IP54 for both earbuds and case.
- Ear 3 adds wireless charging, giving it another convenience advantage.
- Both work with the Nothing X app and support advanced customization.
Design and Build Quality
The CMF Buds Pro 2 follows CMF’s more colorful and functional design philosophy. Its charging case is compact and easy to carry, while the earbuds use a conventional stem-style shape. The standout physical feature is the Smart Dial on the case.
The Smart Dial provides physical rotary control for functions such as volume and playback. Depending on how it is configured through the Nothing X app, it can also control ANC, activate the voice assistant, enable low-latency mode, or mute the microphone.
Nothing Ear 3 takes a more premium design direction. Its case combines a transparent lid with a recycled aluminum base, giving it a more distinctive appearance and a more substantial feel. The charging case also houses the Super Mic system, which separates Ear 3 from conventional wireless earbuds.
For users who prioritize portability and straightforward functionality, CMF Buds Pro 2 has a practical approach. Ear 3 is more focused on material quality and visual design.
Sound Quality
Sound is one of the most interesting parts of the CMF Buds Pro 2 vs Nothing Ear 3 comparison because the two products use different driver philosophies.
CMF Buds Pro 2 employs an 11mm bass driver combined with a 6mm micro-planar tweeter. This dual-driver configuration allows the earbuds to divide different parts of the frequency range between separate components. Nothing also uses Dirac Opteo technology and Ultra Bass Technology 2.0 to tune and customize the listening experience.
The Ultra Bass Technology 2.0 system can dynamically enhance low frequencies and provides multiple bass adjustment levels through the Nothing X app. That makes CMF Buds Pro 2 particularly interesting for listeners who enjoy electronic music, hip-hop, pop, and bass-heavy tracks.
Nothing Ear 3 takes a different approach with a 12mm dynamic driver. Nothing says the driver is designed to provide stronger bass response, brighter treble, and lower distortion compared with previous generations. It also includes Dynamic Bass Enhancement for additional low-frequency impact.
The Ear 3 therefore aims for a more premium and expansive presentation, while CMF Buds Pro 2 gives users more hardware separation between bass and treble reproduction.
For everyday music listening, both can provide a lively presentation. The preferred sound ultimately depends on whether you want the dual-driver design and customization of CMF Buds Pro 2 or the larger single dynamic driver and premium tuning approach of Ear 3.
Active Noise Cancellation
ANC is another area where both products are competitive.
CMF Buds Pro 2 advertises hybrid ANC of up to 50dB with a frequency range reaching 5000Hz. Its Adaptive ANC system can automatically compensate for changes in environmental noise and ear-canal leakage.
Nothing Ear 3 is rated for up to 45dB of ANC. Its adaptive system continuously monitors the environment and adjusts cancellation, with Nothing stating that the system checks surroundings every 600 milliseconds.
It’s important not to interpret the maximum dB numbers as a direct measurement of real-world noise reduction across every situation. ANC performance depends on ear fit, frequency, environmental conditions, seal, and software processing.
In practical terms, both are designed for common environments such as offices, public transportation, cafés, and general city noise.
Transparency Mode
Transparency mode is important when you need to hear your surroundings without removing your earbuds.
CMF Buds Pro 2 provides a Transparency Mode alongside its ANC system. It can be useful when walking outside, talking to someone, or listening for announcements.
Ear 3 also includes Transparency Mode and combines it with its adaptive noise-control system. Because Ear 3 has a more advanced microphone setup, it is designed to provide a strong awareness and communication experience.
For commuting and everyday use, both offer the basic functionality most users expect from modern ANC earbuds.
Call Quality and Microphones
This is one of the biggest distinctions between the two.
CMF Buds Pro 2 has six high-definition microphones and uses Clear Voice Technology 2.0. Nothing says its voice processing system was trained using millions of noise models, while Wind Noise Reduction 2.0 is designed to reduce wind interference during outdoor calls.
Nothing Ear 3 takes things further with six microphones plus a voice-pickup unit and its dedicated Super Mic. The Super Mic is built into the charging case and is activated through a dedicated Talk button. According to Nothing, it is designed to isolate your voice from surrounding noise during conversations.
That makes Ear 3 particularly interesting for people who frequently make calls in busy locations.
If calls are only an occasional part of your earbud usage, CMF Buds Pro 2’s six-microphone setup is already substantial. If microphone functionality is a major priority, Ear 3’s Super Mic is the more distinctive feature.
Battery Life
Battery life is a strong point for CMF Buds Pro 2.
Nothing rates CMF Buds Pro 2 for up to 11 hours of playback from the earbuds alone with ANC off using AAC, and up to 43 hours with the charging case. With ANC on or Transparency Mode enabled, the rating drops to up to 6.5 hours for the earbuds and 26 hours with the case.
Ear 3 offers up to 10 hours from the earbuds with ANC off and up to 38 hours with the case. With ANC on or Transparency Mode enabled, Nothing rates it for up to 5.5 hours per charge and up to 22 hours with the case.
Actual battery life will vary with volume, codec, ANC, connectivity, temperature, and other settings.
On rated battery capacity alone, CMF Buds Pro 2 provides the longer playback figures.
Charging
CMF Buds Pro 2 uses USB-C charging and supports fast charging. Nothing states that a 10-minute charge can provide several hours of playback depending on the operating mode.
Ear 3 also supports USB-C fast charging but adds wireless charging. Its case can provide up to 10 hours of playback from a 10-minute USB-C charge according to Nothing’s product information.
Wireless charging can be especially convenient if you already use a wireless charging pad at your desk.
Connectivity and Codecs
CMF Buds Pro 2 supports Bluetooth 5.4, SBC, AAC, and LDAC. It also supports dual-device connectivity, allowing users to connect with two compatible devices.
Ear 3 also uses Bluetooth 5.4 and supports LDAC, while Nothing lists LHDC 5.0 in addition to AAC and SBC. The product also supports Auracast according to Nothing’s current product information.
For Android users with compatible hardware, LDAC and LHDC can provide access to higher-resolution Bluetooth audio. However, codec availability depends on the source device and software.
Both models are therefore well equipped for modern smartphone and laptop use.
Comfort and Everyday Use
Comfort depends heavily on ear shape and the ear tips you choose.
CMF Buds Pro 2 has a relatively compact design, and its lightweight earbuds are intended for long listening sessions. The stem-style construction also makes them easy to insert and remove.
Ear 3 follows a similarly compact true-wireless format but places greater emphasis on premium construction.
For workouts, commuting, and daily outdoor use, CMF Buds Pro 2 has an IP55 rating for the earbuds. That provides protection against dust and water jets and gives it useful resistance for active everyday use.
Ear 3 carries an IP54 rating for the earbuds and charging case.
Neither should be treated as waterproof, and neither is intended for swimming.
App and Smart Features
Both earbuds use the Nothing X ecosystem, which provides controls for ANC, EQ, sound profiles, connectivity, and other settings.
CMF Buds Pro 2 benefits heavily from app customization. Users can configure the Smart Dial, adjust equalization, control Ultra Bass Technology 2.0, and activate different listening modes.
Ear 3 adds several software-oriented features, including integration with Essential Space and voice interaction with ChatGPT when paired with compatible Nothing devices. Its Super Mic can also be used for voice notes and other supported functions.
The result is that Ear 3 feels more like a premium smart-audio product, while CMF Buds Pro 2 concentrates more heavily on customizable everyday listening.
Pros & Cons
When comparing CMF Buds Pro 2 vs Nothing Ear 3, both products have clear strengths and trade-offs.
CMF Buds Pro 2 Pros
- Dual-driver 11mm + 6mm audio system
- Up to 50dB advertised ANC
- LDAC support
- Strong rated battery life
- Up to 43 hours with the case under specified AAC conditions
- Six HD microphones
- Smart Dial controls
- Dual-device connectivity
- IP55 earbuds
- Adjustable Ultra Bass Technology 2.0
- Spatial Audio Effect
- Fast charging
CMF Buds Pro 2 Cons
- No wireless charging
- Plastic-focused case construction
- Some advanced features depend on compatible devices
- ANC performance varies with fit and environment
- LDAC reduces the maximum rated battery life
Nothing Ear 3 Pros
- Premium transparent and aluminum charging case
- 12mm dynamic driver
- Adaptive ANC
- Super Mic system
- LDAC and LHDC 5.0
- Wireless charging
- Bluetooth 5.4
- Dual-device connectivity
- Static Spatial Audio
- Dynamic Bass Enhancement
- IP54 protection for earbuds and case
- Strong smart-feature integration
Nothing Ear 3 Cons
- Shorter rated total battery life than CMF Buds Pro 2
- Higher-end feature set may be unnecessary for basic listening
- ANC-on battery life is shorter
- Premium features come with a higher positioning
Buying Recommendations
Choosing between these two earbuds should depend on your priorities rather than simply looking at the specifications.
For Long Battery Life
CMF Buds Pro 2 is particularly suitable if battery endurance is important. Its rated figures reach up to 43 hours with the case and up to 11 hours from the earbuds with ANC off under AAC testing conditions.
For Premium Design
Nothing Ear 3 is designed for users who appreciate a more premium physical product. Its transparent design and recycled aluminum charging case provide a different feel from the more value-oriented CMF approach.
For Calls
If you frequently take calls in noisy surroundings, Ear 3’s Super Mic is a major reason to consider it. The dedicated microphone system in the case is one of its defining features.
For Bass-Heavy Music
CMF Buds Pro 2 provides a flexible bass experience through Ultra Bass Technology 2.0 and its dedicated bass driver. Users who enjoy experimenting with low-frequency output may appreciate this flexibility.
For High-Resolution Bluetooth Audio
Both support LDAC, while Ear 3 additionally supports LHDC 5.0. The actual benefit depends on whether your smartphone and music service support these codecs.
For Wireless Charging
Ear 3 is the option to consider if wireless charging is important because its case supports it.
For Active Everyday Use
CMF Buds Pro 2’s IP55 earbud rating and long battery life make it well suited to commuting, walking, and general active use.
Final Verdict
The CMF Buds Pro 2 vs Nothing Ear 3 comparison shows two earbuds built around different priorities.
CMF Buds Pro 2 emphasizes feature density and value. Its dual-driver system, 50dB-rated ANC, LDAC, Smart Dial, long battery life, six microphones, IP55 earbud rating, and bass customization give it a broad feature set.
Nothing Ear 3 takes a more premium approach. Its 12mm driver, aluminum charging case, Super Mic, adaptive ANC, wireless charging, additional LHDC support, and expanded smart features make it a more sophisticated product within the Nothing audio lineup.
The key decision therefore comes down to what you actually need. CMF Buds Pro 2 makes more sense for users who prioritize long battery life, dual-driver audio, strong feature coverage, and practical controls. Ear 3 is more appropriate for users who value premium construction, advanced microphone functionality, wireless charging, and additional high-end features.
Neither specification sheet tells the entire story. Fit, sound preference, smartphone compatibility, codec support, and how frequently you use ANC or voice features should all be considered before purchasing.
FAQ
Q1: Which has better ANC, CMF Buds Pro 2 or Nothing Ear 3?
Ans: CMF Buds Pro 2 is rated for up to 50dB of hybrid ANC, while Nothing Ear 3 is rated for up to 45dB. However, these maximum figures should not be treated as a direct prediction of real-world performance. Ear fit, environmental noise, frequency, and software processing all affect ANC effectiveness.
Q2: Which has better battery life, CMF Buds Pro 2 or Nothing Ear 3?
Ans: CMF Buds Pro 2 has the higher rated battery figures. Nothing rates it for up to 11 hours from the earbuds and up to 43 hours with the case under specified AAC conditions with ANC off. Ear 3 is rated for up to 10 hours from the earbuds and 38 hours with the case.
Q3: Do CMF Buds Pro 2 and Nothing Ear 3 support LDAC?
Ans: Yes. Both support LDAC. Ear 3 additionally supports LHDC 5.0 according to Nothing’s product information. Actual codec availability depends on the connected smartphone and software.
Q4: Which earbuds are better for phone calls?
Ans: Both have advanced microphone systems. CMF Buds Pro 2 uses six HD microphones and Clear Voice Technology 2.0, while Ear 3 adds a Super Mic system in its charging case along with its microphone and voice-pickup hardware. The Ear 3 therefore offers a more unusual microphone configuration for users who frequently make calls in noisy surroundings.
Q5: Do CMF Buds Pro 2 and Nothing Ear 3 have spatial audio?
Ans: Yes. CMF Buds Pro 2 offers a Spatial Audio Effect, while Nothing Ear 3 provides Static Spatial Audio. The experience can vary depending on the content, connected device, and software implementation.
Q6: Which has better water resistance?
Ans: CMF Buds Pro 2 earbuds have an IP55 rating, while Nothing Ear 3 has an IP54 rating for the earbuds and case. Neither product should be submerged or used for swimming.
Q7: Which should you buy, CMF Buds Pro 2 or Nothing Ear 3?
Ans: Consider CMF Buds Pro 2 if your priorities are battery life, dual-driver audio, bass customization, ANC, and practical controls. Consider Nothing Ear 3 if you want a more premium design, Super Mic functionality, wireless charging, and additional codec support. Your choice should ultimately reflect which features you will use most.
Short Conclusion
The CMF Buds Pro 2 vs Nothing Ear 3 comparison is less about one being universally superior and more about two different approaches to wireless audio. CMF Buds Pro 2 delivers an impressive combination of dual-driver sound, ANC, long battery life, LDAC, Smart Dial controls, and durability-focused design. Nothing Ear 3 adds a more premium build, Super Mic technology, wireless charging, a 12mm driver, and additional connectivity features. For everyday value and endurance, CMF Buds Pro 2 offers a compelling specification set; for users interested in premium materials and advanced smart-audio features, Ear 3 provides a different experience.
