GravaStar Sirius Pro vs Technics EAH-AZ100: which should you buy?

On aggregated review scores the Technics EAH-AZ100 comes out ahead with a HearWiki score of 86. The full breakdown - sub-scores, specs and what reviewers actually said - is below.

Our pick: Technics EAH-AZ100 - Outstanding overall at around $250.

True Wireless

Score breakdown

Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.

Technics EAH-AZ100 leads on 6 of 7 measures.

GravaStar Sirius Pro
Technics EAH-AZ100

HearWiki score

Sound

5.7

9.2

Noise cancelling

8.6

Battery

3.5

8.7

Calls

4.8

7.8

Value

8.1

Price (USD)

$180

$250

Generation & platform

The scores rank quality. This is the other question: is the newer one actually newer technology, or the same platform in a new shell?

New platform

Technics EAH-AZ100 (2025) against GravaStar Sirius Pro (2021). The Technics EAH-AZ100 is the newer platform here: Bluetooth 5.3 against 5.2, Top codec LC3 against AAC, LE Audio (LC3) and ANC type Hybrid against Feed-forward.

Sirius Pro2021
EAH-AZ10020254 yr newer

What differsSirius ProEAH-AZ100

Bluetooth: 5.2; 5.3
Top codec: AAC; LC3
LE Audio (LC3): No; Yes
ANC type: Feed-forward; Hybrid
Multipoint pairing: No; Yes
Wireless charging: No; Yes
Transparency mode: No; Yes
Companion app: No; Yes
Water resistance: IPX5; IPX4

Level on: USB-C, Wear detection, Custom EQ.

Specifications

Sirius ProEAH-AZ100

Type: True Wireless; True Wireless
Price (USD): $180; $250
HearWiki score: 41; 86
Released: 2021; 2025
Availability: Discontinued; Sold new
Driver: 2-driver hybrid; 10 mm dynamic
Driver type: hybrid; dynamic
Driver size: 7.2 mm; 10 mm
Drivers per side: 2; 1
Frequency response: -; 20 Hz - 40 kHz
Impedance: 16 Ω; 16 Ω
Bluetooth: 5.2; 5.3
Codecs: SBC, AAC; SBC, AAC, LC3, LDAC
Multipoint pairing: No; Yes
Latency: 65 ms; -
Wireless range: 10 m; 10 m
Battery life: 4 h; 12 h
Battery life (ANC on): -; 10 h
Battery incl. case: 16 h; 28 h
Full charge time: 120 min; 120 min
Quick charge: -; 15 min → 1.2 h
Wireless charging: No; Yes
Active noise cancelling: Yes; Yes
ANC type: feedforward; hybrid
Transparency mode: No; Yes
Companion app: No; Yes
Custom EQ: Yes; Yes
Wear detection: Yes; Yes
Controls: touch; touch
Voice assistant: -; Yes
Weight: 6 g; 11.8 g
Case weight: -; 42 g
Water resistance: IPX5; IPX4
Foldable: No; -
Detachable cable: No; -
USB-C: Yes; Yes
Microphones: -; 2
Microphone type: -; MEMS
Call noise reduction: Yes; -
Call NR technology: ENC; -

Specification comparison of GravaStar Sirius Pro vs Technics EAH-AZ100
Spec	GravaStar Sirius Pro	Technics EAH-AZ100
Type	True Wireless	True Wireless
Price (USD)	$180	$250
HearWiki score	41 / 100 Weak	86 / 100 Outstanding
Released	2021	2025
Audio
Driver	2-driver hybrid	10 mm dynamic
Driver type	hybrid	dynamic
Driver size	7.2 mm	10 mm
Drivers per side	2	1
Frequency response	-	20 Hz - 40 kHz
Impedance	16 Ω	16 Ω
Wireless
Bluetooth	5.2	5.3
Codecs	SBC, AAC	SBC, AAC, LC3, LDAC
Multipoint pairing	No	Yes
Latency	65 ms	-
Wireless range	10 m	10 m
Battery
Battery life	4 h	12 h
Battery life (ANC on)	-	10 h
Battery incl. case	16 h	28 h
Full charge time	120 min	120 min
Quick charge	-	15 min → 1.2 h
Wireless charging	No	Yes
Features
Active noise cancelling	Yes	Yes
ANC type	feedforward	hybrid
Transparency mode	No	Yes
Companion app	No	Yes
Custom EQ	Yes	Yes
Wear detection	Yes	Yes
Controls	touch	touch
Voice assistant	-	Yes
Design
Weight	6 g	11.8 g
Case weight	-	42 g
Water resistance	IPX5	IPX4
Foldable	No	-
Detachable cable	No	-
USB-C	Yes	Yes
Calls
Microphones	-	2
Microphone type	-	MEMS
Call noise reduction	Yes	-
Call NR technology	ENC	-

What reviewers said

GravaStar Sirius Pro

The GravaStar Sirius Pro is a visually striking true wireless earbud set built with a gaming-first mindset, featuring a hybrid dual-driver setup and a low 65ms latency mode for competitive play. Its metal construction and aggressive aesthetic stand out, though its modest 4-hour battery life and lack of companion app support may temper its appeal for everyday use. While it delivers solid performance for its niche, more affordable alternatives can offer similar gaming capabilities.

Pro:Aggressive, unique metal design
Pro:Hybrid dual-driver sound with clear detail
Pro:Low 65ms latency for gaming

Con:Short 4-hour battery life per charge
Con:No app support or EQ adjustments on device
Con:Lacks transparency mode and multipoint

Technics EAH-AZ100

The Technics EAH-AZ100 are premium true wireless earbuds that deliver rich, detailed sound through a 10mm dynamic driver, with support for high-resolution LDAC streaming. They combine effective hybrid active noise cancellation with a comfortable, IPX4-rated design, plus smart features like multipoint pairing and wireless charging for versatile daily use. With up to 12 hours of playtime on a single charge, they are built to last through long listening sessions.

Pro:Excellent sound quality with LDAC support
Pro:Strong hybrid ANC and transparency modes
Pro:Long battery life with wireless charging case

Con:Premium price point
Con:Touch controls may be overly sensitive
Con:No aptX codec support

Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.

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New comparison GravaStar Sirius Pro Technics EAH-AZ100