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Bose Ultra Open Earbuds vs Technics EAH-AZ100

What Ultra Open Earbuds does better (2) and where EAH-AZ100 wins (4) — every spec side by side.

Bose Ultra Open Earbuds
Bose · 2024Ultra Open Earbuds
4.7Score
2 advantages≈ $240
vs
Technics EAH-AZ100
Technics · 2025EAH-AZ100
6.6Score
4 advantages≈ $240
Higher score
4.8Noise control & calls6.0
4.9Battery5.7

Why is Ultra Open Earbuds better than EAH-AZ100?

  1. Charging time1 h vs 2 h2×
  2. aptXYes · EAH-AZ100: No

Why is EAH-AZ100 better than Ultra Open Earbuds?

  1. Active noise cancellingNo · Ultra Open Earbuds: Yes
  2. Battery life7 h vs 8 h+14%
  3. LDACNo · Ultra Open Earbuds: Yes
  4. Total with charging case27 h vs 29 h+7%
Specifications

Side by side

Sound
FitIn-earIn-ear
Ear cup designOpen-backClosed-back
Driver typeDynamicDynamic
Driver size—10 mm
Lowest frequency—20 Hz
Highest frequency—40,000 Hz
Dolby Atmos—Yes
Hi-Res Audio—Yes
Adjustable equaliserYesYes
Noise control
Active noise cancellingNoYes
Transparency / ambient modeYesYes
Noise reduction for calls—Yes
Battery & charging
Battery life7 h8 h
Battery life with ANC—7 h
Total with charging case27 h29 h
Charging time1 h2 h
Fast charging support—Yes
Wireless charging (case)—Yes
Connectivity
WirelessYesYes
Bluetooth version5.35.3
Bluetooth codecsaptX Adaptive, SBCLDAC, AAC, SBC
Hi-res codec (LDAC / aptX HD / LHDC)YesYes
aptXYesNo
LDACNoYes
Multipoint (two devices)YesYes
LE Audio—Yes
USB-CYesYes
Design & build
Earbud weight (each)—5.9 g
Protection ratingIPX4IPX4
Water resistance (IPx)IPx4IPx4
Features
Touch controlsYesYes
Hands-free callsYesYes
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