Mifo O7 Dynamic 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

Mifo O7 Dynamic

51Average

$130

Full review data

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.

Mifo O7 Dynamic
Technics EAH-AZ100

HearWiki score

Sound

6.1

9.2

Noise cancelling

8.6

Battery

8.0

8.7

Calls

5.8

7.8

Value

2.5

8.1

Price (USD)

$130

$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 Mifo O7 Dynamic (2022). The Technics EAH-AZ100 is the newer platform here: Bluetooth 5.3 against 5.0, Top codec LC3 against aptX, LE Audio (LC3) and ANC type Hybrid against None.

O7 Dynamic2022
EAH-AZ10020253 yr newer

What differsO7 DynamicEAH-AZ100

Bluetooth: 5.0; 5.3
Top codec: aptX; LC3
LE Audio (LC3): No; Yes
ANC type: None; Hybrid
Multipoint pairing: No; Yes
Wireless charging: No; Yes
Wear detection: No; Yes
Custom EQ: No; Yes
Companion app: No; Yes
Water resistance: IPX7; IPX4

Level on: USB-C, Transparency mode.

Specifications

O7 DynamicEAH-AZ100

Type: True Wireless; True Wireless
Price (USD): $130; $250
HearWiki score: 51; 86
Released: 2022; 2025
Availability: Discontinued; Sold new
Driver: 6 mm dynamic; 10 mm dynamic
Driver type: dynamic; dynamic
Driver size: 6 mm; 10 mm
Drivers per side: 1; 1
Frequency response: 20 Hz - 20 kHz; 20 Hz - 40 kHz
Impedance: 60 Ω; 16 Ω
Bluetooth: 5.0; 5.3
Codecs: SBC, AAC, aptX; SBC, AAC, LC3, LDAC
Multipoint pairing: No; Yes
Wireless range: -; 10 m
Battery life: 8 h; 12 h
Battery life (ANC on): -; 10 h
Battery incl. case: 100 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: -; hybrid
Transparency mode: Yes; Yes
Companion app: No; Yes
Custom EQ: No; Yes
Wear detection: No; Yes
Controls: touch; touch
Voice assistant: -; Yes
Weight: 4.8 g; 11.8 g
Case weight: -; 42 g
Water resistance: IPX7; IPX4
USB-C: Yes; Yes
Microphones: 4; 2
Microphone type: MEMS; MEMS
Call noise reduction: Yes; -
Call NR technology: cVc; -

Specification comparison of Mifo O7 Dynamic vs Technics EAH-AZ100
Spec	Mifo O7 Dynamic	Technics EAH-AZ100
Type	True Wireless	True Wireless
Price (USD)	$130	$250
HearWiki score	51 / 100 Average	86 / 100 Outstanding
Released	2022	2025
Audio
Driver	6 mm dynamic	10 mm dynamic
Driver type	dynamic	dynamic
Driver size	6 mm	10 mm
Drivers per side	1	1
Frequency response	20 Hz - 20 kHz	20 Hz - 40 kHz
Impedance	60 Ω	16 Ω
Wireless
Bluetooth	5.0	5.3
Codecs	SBC, AAC, aptX	SBC, AAC, LC3, LDAC
Multipoint pairing	No	Yes
Wireless range	-	10 m
Battery
Battery life	8 h	12 h
Battery life (ANC on)	-	10 h
Battery incl. case	100 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	-	hybrid
Transparency mode	Yes	Yes
Companion app	No	Yes
Custom EQ	No	Yes
Wear detection	No	Yes
Controls	touch	touch
Voice assistant	-	Yes
Design
Weight	4.8 g	11.8 g
Case weight	-	42 g
Water resistance	IPX7	IPX4
USB-C	Yes	Yes
Calls
Microphones	4	2
Microphone type	MEMS	MEMS
Call noise reduction	Yes	-
Call NR technology	cVc	-

What reviewers said

Mifo O7 Dynamic

The Mifo O7 are true wireless earbuds that prioritize sound quality with a dual-driver design and support for aptX, delivering detailed audio in a lightweight, IPX7 waterproof shell. They offer a long battery life of 8 hours per charge and 100 hours with the case, though they lack active noise cancellation and app support. The touch controls can take some getting used to, and the microphone performance is somewhat inconsistent, but overall they present a solid package for audiophile-minded listeners on a budget.

Pro:Detailed and enjoyable sound with dual drivers
Pro:Excellent battery life with 100 total hours via case
Pro:IPX7 waterproof rating for sweat and rain resistance

Con:Touch controls can be finicky and hard to master
Con:No active noise cancellation or app support
Con:Microphone quality is mixed for calls

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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