Samsung Galaxy Buds 4 Pro vs Technics EAH-AZ100: which should you buy?

Our pick

Galaxy Buds 4 Pro for lighter IP57 earbuds made for Samsung phones
EAH-AZ100 for longer battery for iPhone or Android

Samsung Galaxy Buds 4 Pro

$249.99

Get it if

You use a Samsung phone and want the features that need one.
You want earbuds rated IP57 for dust and water.
You want the lighter earbuds: 5.1 g (0.18 oz) each.

Buy at Amazon$249.99

Checked Nov 15, 2026 · We may earn a commission.

Technics EAH-AZ100

$299.99

Get it if

You want more listening time: up to 10 hours per charge, noise cancelling on.
You use an iPhone, or switch between iPhone and Android.
You prefer LDAC for high-resolution audio from Android phones.

Buy at Amazon$299.99

Checked Nov 15, 2026 · We may earn a commission.

Get the Galaxy Buds 4 Pro if you use a Samsung phone and want lighter earbuds rated IP57. Get the EAH-AZ100 if you want up to 10 hours per charge with noise cancelling on and an app for iPhone or Android.

What's different

The Technics last longer per charge
With noise cancelling on, Technics rates the EAH-AZ100 for up to 10 hours per charge and Samsung rates the Galaxy Buds 4 Pro for up to 6. With the case they are close: up to 28 hours for the EAH-AZ100 and 26 for the Galaxy Buds 4 Pro.
Weight (each earbud)
Galaxy Buds 4 Pro (leads)5.1 g (0.18 oz)
EAH-AZ1005.9 g (0.21 oz)
The Galaxy Buds 4 Pro earbuds are rated IP57 for dust and water. The EAH-AZ100 earbuds are rated IPX4 for water, with no dust rating. Each Galaxy Buds 4 Pro earbud weighs 5.1 g (0.18 oz) to the EAH-AZ100's 5.9 g (0.21 oz).
High-quality Bluetooth codec
Galaxy Buds 4 ProSSC UHQ (Samsung)
EAH-AZ100LDAC
The Galaxy Buds 4 Pro use Samsung's own SSC UHQ codec for high-quality sound, and some of their features need a Samsung device. The EAH-AZ100 use LDAC, which carries high-resolution audio from Android phones that support it, and their app runs on iPhone and Android.
Noise cancellation
The Galaxy Buds 4 Pro shut out traffic noise, though keyboard clatter still comes through. The EAH-AZ100 are effective noise-blockers, though noise cancelling is not their strongest feature.

What's the same

A charging case that charges wirelessly
LE Audio with the LC3 codec
Spatial audio with head tracking
Noise cancellation and a mode to hear the room

Tale of the Tape

Galaxy Buds 4 Pro

EAH-AZ100

Galaxy Buds 4 Pro: Up to 6 hrs Battery per charge (noise cancellation on)EAH-AZ100: Up to 10 hrs ✓
Galaxy Buds 4 Pro: Up to 26 hrs Battery with case (noise cancellation on)EAH-AZ100: Up to 28 hrs
Galaxy Buds 4 Pro: IP57 earbuds ✓ case not water resistantDust, sweat and water ratingEAH-AZ100: IPX4 earbuds case not rated
Galaxy Buds 4 Pro: 5.1 g (0.18 oz) ✓ Weight (each earbud)EAH-AZ100: 5.9 g (0.21 oz)
Galaxy Buds 4 Pro: SSC UHQ (Samsung) High-quality Bluetooth codecEAH-AZ100: LDAC
Galaxy Buds 4 Pro: Android some features need a Samsung deviceSoftware (full features)EAH-AZ100: iOS or Android

FAQs

Which should you buy, the Galaxy Buds 4 Pro or the EAH-AZ100?

Get the Galaxy Buds 4 Pro for lighter IP57 earbuds, best with a Samsung phone, or the Technics EAH-AZ100 for longer battery and an app for iPhone or Android.

Which has longer battery life, the Galaxy Buds 4 Pro or the EAH-AZ100?

The EAH-AZ100: up to 10 hours per charge with noise cancelling on, to 6 for the Galaxy Buds 4 Pro. With the case it is up to 28 hours to 26.

Which is lighter, the Galaxy Buds 4 Pro or the EAH-AZ100?

The Galaxy Buds 4 Pro, at 5.1 g (0.18 oz) per earbud to the EAH-AZ100's 5.9 g (0.21 oz).

Galaxy Buds 4 Pro or EAH-AZ100 for workouts?

The Galaxy Buds 4 Pro earbuds carry the higher rating, IP57 for dust and water, to the EAH-AZ100's IPX4 for water. Neither case is water resistant.