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  3. Ultra Open Earbuds (2nd Gen) vs EAH-AZ100

Bose Ultra Open Earbuds (2nd Gen) vs Technics EAH-AZ100

What Ultra Open Earbuds (2nd Gen) does better (3) and where EAH-AZ100 wins (3) — every spec side by side.

Bose Ultra Open Earbuds (2nd Gen)
4.6Score
3 advantages≈ $320
vs
Technics EAH-AZ100
Technics · 2025EAH-AZ100
6.5Score
3 advantages≈ $280
Higher score
2.0Noise control & calls6.0
7.4Battery5.6
2.3Build & features3.8

Why is Ultra Open Earbuds (2nd Gen) better than EAH-AZ100?

  1. Battery life9 h vs 8 h+12%
  2. Charging time1 h vs 2 h2×
  3. aptXYes · EAH-AZ100: No

Why is EAH-AZ100 better than Ultra Open Earbuds (2nd Gen)?

  1. Active noise cancellingNo · Ultra Open Earbuds (2nd Gen): Yes
  2. LDACNo · Ultra Open Earbuds (2nd Gen): Yes
  3. Earbud weight (each)10 g vs 5.9 g+69%
Specifications

Side by side

Sound
FitIn-earIn-ear
Ear cup designClosed-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 mode—Yes
Microphones2—
Noise reduction for calls—Yes
Battery & charging
Battery life9 h8 h
Battery life with ANC—7 h
Total with charging case—29 h
Charging time1 h2 h
Fast charging support—Yes
Wireless charging (case)YesYes
Connectivity
WirelessYesYes
Bluetooth version5.45.3
Bluetooth codecsaptX Adaptive, AAC, SBCLDAC, AAC, SBC
Hi-res codec (LDAC / aptX HD / LHDC)YesYes
aptXYesNo
LDACNoYes
Multipoint (two devices)YesYes
LE Audio—Yes
USB-CYesYes
Smart & streaming
Companion appYes—
Design & build
Earbud weight (each)10 g5.9 g
Protection ratingIPX4IPX4
Water resistance (IPx)IPx4IPx4
Features
Touch controls—Yes
Hands-free callsYesYes
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