Soundcore P31i vs Liberty 4 NC is a surprisingly difficult decision. Both promise adaptive noise cancelling, LDAC audio, six microphones and up to 50 hours of total battery life—but the Liberty 4 NC usually costs far more.
This specification-based comparison explains what the extra money actually buys, where the cheaper P31i is stronger, and which model makes more sense for commuting, calls, workouts and everyday listening.
Quick verdict
- P31i or Liberty 4 NC: the short answer
- Soundcore P31i vs Liberty 4 NC specifications
- Price and value: why the P31i is hard to beat
- Noise cancelling: adaptive ANC on both, different emphasis
- Sound quality and EQ
- Battery life and charging
- Calls, meetings and outdoor use
- Comfort and daily convenience
- Which Soundcore earbuds should you buy?
- Final verdict
- Compare today’s Amazon prices
- Frequently asked questions
P31i or Liberty 4 NC: the short answer
Buy the P31i for maximum value. It matches the Liberty 4 NC’s listed 10/50-hour battery format, supports LDAC, offers strong adaptive ANC, clearer weather protection on paper and adds real-time translation. Buy the Liberty 4 NC if wireless charging, wear detection, HearID 2.0 and a more mature premium feature set are worth paying extra for.
Our price-gap rule
- Liberty 4 NC costs $40+ more: buy the P31i unless you specifically need wireless charging or wear detection.
- The gap is $20–$40: choose P31i for value; choose Liberty 4 NC only for HearID, auto-pause and premium convenience.
- The gap is under $20: Liberty 4 NC becomes the better long-term upgrade for most buyers.
Best way to decide: open both Amazon prices below, compare the same color and seller, then use the rule above.
Soundcore P31i
Lower-priced choice with adaptive ANC, LDAC, IP55 protection, six microphones and AI translation.
Liberty 4 NC
Better choice for wireless charging, automatic play/pause, HearID 2.0 and 22 EQ presets.
As an Amazon Associate, SEFP Journal earns from qualifying purchases.
Soundcore P31i vs Liberty 4 NC specifications
| Feature | Soundcore P31i | Liberty 4 NC |
|---|---|---|
| Positioning | Newer budget/value model | Premium midrange model |
| Noise cancelling | Real-time adaptive ANC; listed up to 52 dB reduction | Adaptive ANC 2.0; listed up to 98.5% noise reduction |
| Hi-res codec | LDAC | LDAC |
| Battery, normal mode | Up to 10 hours / 50 hours with case | Up to 10 hours / 50 hours with case |
| Battery, ANC on | Up to 8 hours / 40 hours with case | Up to 8 hours / 40 hours with case |
| Microphones | Six AI-enhanced microphones | Six beamforming microphones with AI |
| Water and dust rating | IP55 | IPX4 |
| Wireless charging | Not listed | Yes |
| Wear detection | Not listed | Auto play/pause |
| Sound personalization | App EQ and Soundcore features | HearID 2.0 and 22 EQ presets |
| Special feature | Real-time translation in 100+ languages | Wireless charging and mature premium controls |
| Best for | Value, commuting, calls and workouts | Convenience, personalization and premium extras |
Important: the P31i’s “52 dB” claim and Liberty 4 NC’s “98.5%” claim use different units and testing language. They should not be treated as a direct score. The safer conclusion is that both use adaptive ANC, while the Liberty 4 NC adds ear-canal personalization through Adaptive ANC 2.0.
Price and value: why the P31i is hard to beat
When checked on Amazon.com on August 4, 2026, both models were in stock, but the Liberty 4 NC cost more than twice as much as the P31i. That gap can change during sales, yet it defines the comparison.
The P31i is not merely a basic earbud with weaker headline numbers. Its listing includes LDAC, adaptive noise cancelling, six microphones, 50-hour total playtime, fast charging and IP55 protection. Those are the features many people actually use every day.
The Liberty 4 NC earns its premium through convenience: wireless charging, automatic play/pause, HearID 2.0, 22 EQ presets and a longer-established control system. Those extras are valuable, but they do not automatically make music sound twice as good or battery life twice as long.
Noise cancelling: adaptive ANC on both, different emphasis
The P31i advertises real-time adaptive noise cancelling with up to 52 dB of reduction. It monitors the surrounding environment and adjusts the cancellation level automatically. That feature is aimed at commuters, office users and travelers who want strong ANC without manually changing modes.
The Liberty 4 NC uses Adaptive ANC 2.0. Soundcore says it adjusts for both the environment and the listener’s ear canals. That extra personalization is the meaningful distinction—not the incompatible “52 dB” and “98.5%” marketing claims.
On specifications alone, the Liberty 4 NC has the more sophisticated ANC system. However, the P31i offers the more compelling ANC-per-dollar proposition. If your priority is reducing bus, train or office noise at the lowest practical cost, start with the P31i. If you are sensitive to fit and want ANC calibrated more closely to your ears, the Liberty 4 NC is the safer premium choice.
Sound quality and EQ
Why both models appeal to Android listeners
Both models support LDAC and Hi-Res wireless audio. On a compatible Android phone, LDAC can transmit more audio data than the basic SBC codec. The real benefit still depends on the source file, Bluetooth conditions, fit and your EQ settings.
Where the Liberty 4 NC pulls ahead
The Liberty 4 NC uses 11 mm custom-tuned drivers and includes HearID 2.0. HearID creates a personalized sound profile, while the Soundcore app provides 22 presets and a fully adjustable EQ. This gives listeners more ways to correct a tuning they dislike.
Where the P31i makes more sense
The P31i also advertises Hi-Res audio with LDAC, spatial audio and app-based control. Its main advantage is that these features arrive at a much lower price. Buyers who already know how to use a manual EQ may not need the Liberty 4 NC’s extra personalization layer.
Sound verdict: Liberty 4 NC wins for personalization; P31i wins for sound-feature value.
Battery life and charging
Battery specifications are almost identical:
- Up to 10 hours per charge in normal mode
- Up to 50 hours with the charging case
- Up to 8 hours per charge with ANC enabled
- Up to 40 hours total with ANC enabled
Both also support fast charging. The P31i listing states that a 10-minute charge provides up to 3.5 hours of playback. The Liberty 4 NC’s major advantage is wireless case charging. If your desk, car or nightstand already has a Qi charging pad, that convenience can justify part of the price difference.
If you charge by USB-C and do not care about placing the case on a wireless pad, battery life is effectively a tie on the listed figures.
Calls, meetings and outdoor use
Both earbuds use six microphones and AI processing to reduce background noise during calls. The P31i specifically advertises wind-noise reduction, while the Liberty 4 NC uses beamforming microphones and an AI algorithm.
Without controlled side-by-side recordings, it would be misleading to declare a universal microphone winner. Fit, wind direction, firmware and phone processing all matter. For a specification-based decision, both are appropriate for ordinary calls and video meetings.
The protection ratings provide a clearer difference. P31i is listed as IP55, covering both dust resistance and stronger water-jet protection. Liberty 4 NC is IPX4, which is suitable for splashes and light rain but does not include a dust rating.
Workout verdict: P31i has the stronger protection rating on paper. Neither model should be used for swimming.
Comfort and daily convenience
Comfort cannot be guaranteed from specifications because ear shape and tip selection dominate the result. Both use a stem-style in-ear design and touch controls.
The Liberty 4 NC has the more complete convenience package. Auto play/pause can stop audio when an earbud is removed, multipoint helps users switch between two devices, and wireless charging reduces cable use. The P31i supports the core functions most buyers need, but its product listing does not advertise wear detection or wireless charging.
The P31i counters with real-time AI translation in more than 100 languages. That feature may appeal to travelers, students and multilingual households. Treat it as an app-assisted tool rather than a replacement for a professional interpreter.
Which Soundcore earbuds should you buy?
Buy the Soundcore P31i if:
- You want the best value under roughly the midrange price tier.
- You need adaptive ANC, LDAC and long battery life without premium pricing.
- You exercise outdoors and prefer the IP55 rating.
- You make calls in windy environments.
- You are interested in Soundcore’s AI translation feature.
Buy the Liberty 4 NC if:
- You want HearID 2.0 and more sound-personalization options.
- You use wireless charging every day.
- You want automatic play/pause when removing an earbud.
- You prefer the more mature premium Soundcore feature set.
- You find it at a sale price that narrows the gap.
Final verdict
The Soundcore P31i is the better buy for most people in 2026. Its adaptive ANC, LDAC support, six microphones, 50-hour listed battery life and IP55 rating cover the essentials unusually well for the price.
The Liberty 4 NC remains the better-equipped product. Wireless charging, wear detection, HearID 2.0 and richer EQ options make daily ownership more polished. Buy it when those conveniences matter or when a sale makes the price difference modest.
For more Soundcore options, read our P31i vs P30i vs P40i comparison. If you are comparing other sub-$100 models, see our best wireless earbuds under $100 guide.
Check current deals
Compare today’s Amazon prices
Amazon prices and stock vary by color and seller. Confirm the final price on the product page.
Frequently asked questions
Is the P31i better than the Liberty 4 NC?
The P31i is the better value, while the Liberty 4 NC has more premium convenience features. Choose P31i for lower cost and IP55 protection; choose Liberty 4 NC for wireless charging, wear detection and HearID 2.0.
Which has better noise cancelling?
Both use adaptive ANC. Liberty 4 NC adds ear-canal personalization through Adaptive ANC 2.0, so it has the more sophisticated system on paper. The brands’ percentage and decibel claims are not directly comparable.
Do both support LDAC?
Yes. Both product listings advertise LDAC and Hi-Res wireless audio. LDAC availability and performance depend on the connected device and settings.
Which has better battery life?
The listed figures are essentially tied: up to 10 hours per charge and 50 hours with the case in normal mode, or 8/40 hours with ANC enabled.
Does the P31i have wireless charging?
Wireless charging is not listed for the P31i. Liberty 4 NC supports wireless charging.
Which is better for workouts?
P31i has the stronger listed protection rating at IP55, compared with IPX4 for Liberty 4 NC. Fit remains personal, and neither should be used for swimming.
