Bose QuietComfort Ultra Earbuds (2nd Gen) vs Technics EAH-AZ100: which should you buy?

Answer worked out Oct. 31, 2026

Bose QuietComfort Ultra Earbuds (2nd Gen) price: Checked Oct. 30, 2026

Technics EAH-AZ100 price: Checked Oct. 31, 2026

Most people: get the Technics EAH-AZ100, because it is the better fit for more of what people buy these for.

Get the Technics EAH-AZ100 for workouts and sound quality.

Get the Bose QuietComfort Ultra Earbuds (2nd Gen) to save $1.

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

Bose QuietComfort Ultra Earbuds (2nd Gen)
BOSE

Bose QuietComfort Ultra Earbuds (2nd Gen)

$299 at Amazon
Technics EAH-AZ100
TECHNICS

Technics EAH-AZ100

$299.99 at Amazon
  1. Bose QuietComfort Ultra Earbuds (2nd Gen): Up to 6 hrs (4 with Immersive Audio); case holds up to 3 more chargesBatteryTechnics EAH-AZ100: Up to 10 hours with noise cancelling on, 28 hours with the case; a 15-minute charge gives 90 minutes
  2. Bose QuietComfort Ultra Earbuds (2nd Gen): 0.016 lb per earbud; case 0.132 lbWeightTechnics EAH-AZ100: 5.9 g per earbud
  3. Bose QuietComfort Ultra Earbuds (2nd Gen): IPX4Water resistanceTechnics EAH-AZ100: IPX4 (earbuds only, not the charging case)
  4. Bose QuietComfort Ultra Earbuds (2nd Gen): Bluetooth 5.3; multipoint, two devices at onceConnectivityTechnics EAH-AZ100: Bluetooth LE Audio with Auracast and LC3; multipoint to 3 devices at once
  5. Bose QuietComfort Ultra Earbuds (2nd Gen): $299Price today$0.99 apartTechnics EAH-AZ100: $299.99
Bose QuietComfort Ultra Earbuds (2nd Gen)

See Bose QuietComfort Ultra Earbuds (2nd Gen) prices

Technics EAH-AZ100
Buy at Technics$299.99
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All the details

Who should buy which

  • The Technics EAH-AZ100 Guide names it for high-res music, air travel and fitness.High-res music: The Magnetic Fluid Driver keeps distortion low and bass accurate, and the sound is engagingly musical. Source linkedSourceAir travel: Adaptive noise cancelling adjusts in real time to keep ambient noise out on the flight. Source linkedSourceFitness: A snug concha fit held up through box jumps, and IPX4 means rain and hard gym sessions are no worry. Source linkedSource

The Bose QuietComfort Ultra Earbuds (2nd Gen) Guide does not name what it is best for yet, so this list does not compare the two.

From what each Guide names the product best for.

Side by side

FeatureBose QuietComfort Ultra Earbuds (2nd Gen)Technics EAH-AZ100
BatteryUp to 6 hrsUp to 10 hours with noise cancelling on, 28 hours with the case
Weight0.016 lb per earbud5.9 g per earbud
Water resistanceIPX4IPX4
ConnectivityBluetooth 5.3Bluetooth LE Audio with Auracast and LC3
Status lightStatus light inside the charging caseCharging-cradle LED flashes light blue
ControlsTouch: tap to play or pause, swipe for volume, press and hold for modesTouch sensors for play, tracks and calls, customizable in the app
Noise cancellingYes, adjustable, with ActiveSense in Aware ModeAdaptive noise cancelling that adjusts in real time to your surroundings
Spatial audioBose Immersive AudioSpatial audio optimized for Dolby Atmos, with Dolby Head Tracking
Works withiPhone and Android, Bose appiPhone and Android: Technics Audio Connect app
Earbud batteryUp to 6 hrsAbout 10 hours with noise cancelling on, 12 hours with it off
Case batteryUp to 3 more full chargesAbout 28 hours with noise cancelling on, 29 hours with it off, earbuds and case together
Lossless audioaptX Adaptive with Snapdragon Sound devicesLDAC (96 kHz/990 kbps)
CaseWireless charging case with a USB-C portCharging case with Qi wireless charging

Bose QuietComfort Ultra Earbuds (2nd Gen)

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iPhone
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Android
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Sources

Bose NewsroomTechnicsBoseBoseTechnicsTechnics
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