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Nothing CMF Buds 2 vs TOZO Crystal Buds: which should you buy?

On aggregated review scores the Nothing CMF Buds 2 comes out ahead with a HearWiki score of 82. The full breakdown - sub-scores, specs and what reviewers actually said - is below.

Our pick: Nothing CMF Buds 2 - Outstanding overall at around $37.

Score breakdown

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

Nothing CMF Buds 2 leads on 6 of 7 measures.

  • Nothing CMF Buds 2
  • TOZO Crystal Buds
HearWiki score
82
72
Sound
7.7
7.4
Noise cancelling
7.8
-
Battery
8.8
7.2
Calls
6.5
3.0
Value
9.4
8.2
Price (USD)
$37
$32

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

Nothing CMF Buds 2 (2025) against TOZO Crystal Buds (2023). The Nothing CMF Buds 2 is the newer platform here: Bluetooth 5.4 against 5.3 and ANC type Hybrid against None.

  • CMF Buds 220252 yr newer
  • Crystal Buds2023
What differsCMF Buds 2Crystal Buds

Platform

Bluetooth
5.4
5.3
ANC type
Hybrid
None

Everyday features

Wireless charging
No
Yes
Water resistance
IP55
IPX8

Level on: Top codec, Multipoint pairing, USB-C.

Specifications

CMF Buds 2Crystal Buds
Type
True Wireless
True Wireless
Price (USD)
$37
$32
HearWiki score
82
72
Released
2025
2023
Availability
Sold new
Still sold new
Driver
11 mm driver
6 mm dynamic
Driver type
dynamic
dynamic
Driver size
11 mm
6 mm
Drivers per side
1
1
Frequency response
20 Hz - 20 kHz
20 Hz - 20 kHz
Impedance
-
16 Ω
Bluetooth
5.4
5.3
Codecs
SBC, AAC
SBC, AAC
Multipoint pairing
Yes
Yes
Latency
110 ms
-
Wireless range
10 m
10 m
Battery life
13.5 h
9 h
Battery life (ANC on)
7.5 h
-
Battery incl. case
55 h
40 h
Full charge time
93 min
120 min
Quick charge
10 min → 4 h
-
Wireless charging
No
Yes
Active noise cancelling
Yes
No
ANC type
hybrid
none
Transparency mode
Yes
-
Companion app
Yes
-
Custom EQ
Yes
-
Wear detection
Yes
-
Controls
touch
-
Voice assistant
Yes
-
Weight
4.5 g
-
Case weight
41.5 g
-
Water resistance
IP55
IPX8
USB-C
Yes
Yes
Microphones
6
4
Call noise reduction
-
Yes
Call NR technology
-
ENC

What reviewers said

Nothing CMF Buds 2

The Nothing CMF Buds 2 are an exceptional budget true-wireless option, packing a surprisingly rich feature set for their low price. They deliver engaging sound, robust battery life, and effective hybrid ANC, making them a top-value pick for most listeners.

  • Pro:Excellent value for the price
  • Pro:Strong battery life with ANC off
  • Pro:Effective hybrid active noise cancellation
  • Con:Call performance weak in noisy settings
  • Con:ANC and gaming latency not class-leading
  • Con:No wireless charging support

TOZO Crystal Buds

The TOZO Crystal Buds are a budget-friendly true wireless option that focuses on delivering a clear, natural sound with less exaggerated bass than many rivals. They offer a long battery life, strong water resistance, and useful app support, making them a solid pick for everyday use, though their call quality is a notable weak point.

  • Pro:Crisp and natural sound signature
  • Pro:Excellent IPX8 water resistance
  • Pro:Long battery life with charging case
  • Con:Below-average phone call performance
  • Con:No active noise cancellation
  • Con:Basic codec support without aptX or LDAC

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

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