The Bose QuietComfort 35 II (QC35) has been a go-to for years for people who want excellent comfort, strong noise cancellation, and reliable wireless audio. The QuietComfort 45 (QC45) builds on that foundation with modern refinements: updated ANC, refined sound tuning, USB-C charging, better clarity, and some design tweaks. If you want more refined ANC and a more future-proof feature set, the QC45 delivers enough upgrades to make it worth choosing.
Let’s make long story short: If you want a proven, comfortable pair of ANC headphones at possibly lower cost (especially used/refurbished), the QC35 still holds up well. But if you value clearer sound, updated tech (USB-C, app support), and slightly better ANC & comfort features, QC45 is clearly the better pick overall.
Why Do I Recommend the Bose QuietComfort 45?
- Updated Noise Cancelling & Clarity — QC45 gives upgraded ANC, quieter transparency or “aware” mode, and better handling of subtle ambient sounds. From Amazon description: “perfect balance of quiet, comfort, and sound … using tiny mics … cancelling it with opposite signals.”
- Modern Connectivity & Charging — QC45 uses USB-C, includes wired listening option, and reliable Bluetooth range. The QC35 uses older micro USB charging and weaker USB-A or proprietary cable options.
- Comfort & Build Improvements — QC45 crafted with lighter clamping force, plush synthetic leather earpads, impact-resistant frame parts, delivering more comfortable long-session wear.
- Consistent Battery Life with Minor Charging Perks — Both offer up to ~24 hours battery life per charge, but QC45 has quicker 15-minute charge → few hours listening (approx. 3 hours) when in rush. QC35 offers solid 20 hours in many use cases.
Detailed Comparison & Recommendation
| Feature / Spec | Bose QuietComfort 35 | Bose QuietComfort 45 | Which Is Best & Why? |
|---|---|---|---|
| ANC (Active Noise Cancelling) | Excellent ANC for established model; strong with low frequency, but older hardware limits subtle refinement | Slightly more refined ANC, better clarity in “aware”/“ambient” mode, improved mic suppression of wind & noise | QC45 — better for demanding environments and refined listening |
| Sound Quality / EQ | Very good sound, balanced; may have softer high frequencies and less separation than newer models | Improved sound tuning, better clarity, perhaps slightly more crisp in highs, better imaging | QC45 edges ahead for clarity and detail |
| Connectivity / Charging | Charging via micro-USB; standard Bluetooth; good wired option; some users already have decent performance | USB-C charging; maintained wired option; app controls; updated Bluetooth reliability | QC45 wins for modern convenience |
| Battery Life | ~20-24 hours depending on use | Up to ~24 hours; quick-charge gives ~3 hours after ~15 minutes charging | Tie; QC45 offers better “on the go” charge flexibility |
| Comfort & Physical Features | Very comfortable, well padded; lightweight; reliable design | Similar comfort, maybe lighter clamp force, newer materials, slightly more durable build in some parts | QC45 had improved ergonomics for longer wear |
| Check Best Seller | Check Bose QuietComfort 35 Best Price | Check Bose QuietComfort 45 Best Price | QC45 is better value if you’ll make use of the improvements |
What Are The Major Differences Between Bose QuietComfort 35 vs 45
- ANC refinement: QC45 has better mic array / hardware for improved ambient/Aware mode.
- Charging port: QC35 has micro-USB (older standard); QC45 uses USB-C (more modern, easier to find).
- Comfort: QC45 has slightly lighter clamp force, newer earcup materials/padding.
- Feature updates: QC45 supports newer developments in app controls and firmware; QC35 more mature, but fewer updates.
- Price delta: QC45 costs more; QC35 may be a bargain especially refurbished or on discount.
- Sound clarity: QC45 edges ahead in clarity, especially high frequency detail and separation.
Check Bose QuietComfort 45 Limited Time Deal Here
What Users Are Saying About Bose QuietComfort 35 vs 45
| Feature / Feedback | QC35 Users | QC45 Users |
|---|---|---|
| Comfort / All-Day Wear | “Fantastic comfort; great for long flights; ear cups soft; after a few hours some heat.” | “Softer clamp; less fatigue; slightly better at keeping ears from getting hot.” |
| Noise Cancelling / Ambient Mode | “QC35 blocks most low rumble; ambient mode ok but not perfect.” | “QC45’s aware mode is cleaner; better at letting needed ambient sounds while still cancelling unwanted noise.” |
| Daily Use / Connectivity | “Overall good; cables and charging older; Bluetooth dropping occasionally.” | “USB-C is a big win; app controls feel more modern; reliable connections.” |
| Battery | “20h is ok; charging ritual.” | “24h is solid; quick-charge is helpful when forgetting to plug in.” |
| Recommended Best Seller | Check Bose QuietComfort 35 Best Price | Check Bose QuietComfort 45 Best Price |
Fair Advice to Consider
- Go for QC35 if you find it at a good discount, you primarily listen in quieter environments, and you care mostly about battery life and comfort without needing the newer USB-C, ambient clarity features.
- Choose QC45 if you want the newer conveniences (USB-C), slightly improved ANC and clarity, better ambient mode, and more future-proof hardware.
Quick Comparison Table
| Spec / Feature | QuietComfort 35 (QC35) | QuietComfort 45 (QC45) |
|---|---|---|
| Battery Life | ~20-24 hours | ~24 hours |
| Noise Cancelling | Strong, especially low frequency | Slightly improved across band |
| Ambient/Aware Mode | Functional but less clean | Cleaner, more refined in QC45 |
| Charging Port | Micro-USB | USB-C |
| Comfort / Weight | Very comfortable, slightly tighter clamp | Softer clamp, updated materials |
| Connectivity | Bluetooth, wired option | Bluetooth, wired, improved firmware |
| Price | Check Bose QuietComfort 35 Best Price | Check Bose QuietComfort 45 Best Price |
FAQs
What’s the biggest difference between Bose QC35 and QC45?
The QC45 adds USB-C charging, improved ANC, and a cleaner Aware mode, while the QC35 uses micro-USB and has slightly older ANC hardware.
Do both headphones support wired listening?
Yes. Both come with a 3.5 mm audio cable option, so you can use them in wired mode when the battery is dead or for zero-latency listening.
Which model has better noise cancelling?
The QC45 edges ahead, with more refined ANC and a better “Aware” mode that makes outside sounds more natural. The QC35 is still strong, especially for plane and train noise.
Are they both comfortable for long sessions?
Yes. The QC series is known for all-day comfort. The QC45 has slightly softer clamping force and updated earpad materials, making it a bit more comfortable over long use.
Is there a price difference?
Yes. The QC35 is older, so you can often find it discounted or refurbished. The QC45 is newer and costs more but has better features for future use.
Final Verdict
For most users wanting excellent ANC, comfort, and solid wireless sound, the Bose QuietComfort 45 is the better overall choice. It delivers meaningful improvements—especially in ambient sound clarity, USB-C charging, and updated ergonomics—that make everyday use more pleasant. The QC35 still remains a strong value, particularly if you can grab it cheaper and don’t need the newer updates. But if it were me, I’d spend the extra for QC45, knowing I’ll feel the difference on long flights, commutes, or in noisy environments.