arkivoAPI

Earbuds / Compare

CMF Buds Pro 2 vs JBL Tune Flex 2

74 of 157 fields differ

Download CSVDownload JSON
  • 33 different values
  • 41 known for one only
  • 20 the same
  • 63 missing for both

Biggest differences

Each bar uses the scale of all 138 earbuds.

  1. Playback per charge with ANC (claimed)A: 6.5hB: 8hJBL is 1.5 h higher.
  2. Total with case and ANC (claimed)A: 26hB: 32hJBL is 6 h higher.
  3. With caseA: 43hB: 48hJBL is 5 h higher.

Size, drawn to scale

Front and side.

Weight

0 to 80 g

Weight per bud
A4.9g
B4.4g
Case weight
A46g
B32.9g

All 166 fields

Every value links to where we found it.

ACMF Buds Pro 2
BJBL Tune Flex 2

General

4 of 8 differ
Announced
Not available
Not available
Predecessor
Not available
Successor
Not available
Not available
Launch price (EU)
Not available
Not available

Design

1 of 4 differ
RGB lighting
Not available
Not available

Drivers and sound

14 of 17 differ
Driver size
11mm
12mm
Drivers per bud
2
1
Max sample rate
Not available
Max bit depth
Not available
Adaptive EQ
Not available
Not available
EQ presets
Not available
Not available
Volume limit
Not available
Not available

Spatial audio

1 of 2 differ
Head tracking
Not available
Not available

Noise cancelling

4 of 11 differ
ANC type
Not available
ANC microphones in both earbuds
Not available
Not available
ANC levels
Not available
Not available
Automatic ANC and transparency blend
Not available
Not available
Conversation detection
Not available
Not available

Measured

4 of 23 differ
Frequency response notes (measured)
Not available
Bass amount (measured)
Not available
Not available
Treble amount (measured)
Not available
Not available
Deviation from target (measured)
Not available
Not available
Consistency between fittings (measured)
Not available
Not available
Harmonic distortion (measured)
Not available
Not available
Sound leakage (measured)
Not available
Not available
Noise isolation (measured)
Not available
Not available
Noise isolation, best (measured)
Not available
Not available
Passive isolation (measured)
Not available
Not available
Call quality notes (measured)
Not available
Mic low-frequency extension (measured)
Not available
Not available
Mic high-frequency extension (measured)
Not available
Not available
Mic speech-to-noise ratio (measured)
Not available
Not available
Latency (measured)
Not available
Not available
Bluetooth latency, worst (measured)
Not available
Not available
2.4 GHz latency, worst (measured)
Not available
Not available
Latency in game mode (measured)
Not available
Not available
Longest tested use per charge
6.25h
Not available
Battery life with case (measured)
Not available
Not available
Full charge time (measured)
Not available
Not available
Weight per bud (measured)
Not available
Not available

Microphones and calls

4 of 7 differ
Bone conduction voice sensor
Not available
Not available
Call audio bandwidth
Not available
Not available

Connectivity

5 of 18 differ
Auracast
Not available
Not available
Multipoint with LDAC
Not available
Not available
Paired devices remembered
Not available
Not available
Automatic switching between own devices
Not available
Not available
Audio sharing
Not available
Not available
Wireless range (claimed)
Not available
Not available
Wireless receiver
Not available
Not available
Receiver connector
Not available
Not available
Simultaneous 2.4 GHz and Bluetooth audio
Not available
Not available

Latency

2 of 3 differ
Lowest claimed latency
120ms
Not available

Compatibility

3 of 4 differ
Features that need a specific device
ACMF Buds Pro 2
FeatureNeeds
Android and iOS compatibilityCurrent listing specifies Android 6.0 or above and iOS 13 or above. Some older family FAQ wording says Android 5.0.
LDAC audioUse a compatible LDAC source and enable high-quality audio in Nothing X. Up to 24-bit/96 kHz is a codec claim, not lossless playback. Current physical-revision support for simultaneous LDAC and Dual Connection or Dirac is not established.
Spatial Audio EffectEnable HRTF spatial processing in Nothing X. No specific source format or dynamic head tracking is claimed.
Smart Dial on the caseConfigure the case dial in Nothing X. It supports volume, playback, noise-mode, voice-assistant, low-lag and mic-mute commands. Case-only mute does not establish on-ear microphone mute.
Earbud volume controlsAssign double tap and hold in Nothing X Controls. Hold after the double tap to change volume. Case dial rotation is a separate option.
BJBL Tune Flex 2
FeatureNeeds
Google Fast PairAndroid phones running Android 6 or later.
Microsoft Swift PairWindows 10 version 1803 or later.
ANC, Ambient Aware and TalkThru controls on the earbudsConnect the earbuds to the JBL Headphones app to enable the advanced controls.
Ear Tip Sound SettingsSet in the JBL Headphones app.
Official licence
Not available
Not available

Battery and charging

12 of 13 differ
User-replaceable earbud battery
Not available
Not available
Claimed battery life
ACMF Buds Pro 2
ModeCodecIncludes case rechargesHours (h)
ANC offAACNo11
ANC offAACYes43
ANC onAACNo6.5
ANC onAACYes26
TransparencyAACNo6.5
TransparencyAACYes26
ANC offLDACNo6.5
ANC offLDACYes25
ANC onLDACNo4.3
ANC onLDACYes16.6
TransparencyLDACNo4.3
TransparencyLDACYes16.6
CallNot availableNo6
CallNot availableYes25
CallNot availableNo4.8
CallNot availableYes18.6
BJBL Tune Flex 2
ModeIncludes case rechargesHours (h)
ANC onNo8
ANC offNo12
ANC onYes32
ANC offYes48
CallNo5
Source1Press releaseharman.com/india/pages/JBL-Launches-Tune-Series-2-in-India--Redefining-Personal-Audio.aspxRead 20 October 2026Release table for Flex 2: 48 hours playback, 8+24H with ANC on and 12+36H with ANC off. The first number is the earbuds and the second is the case. The totals of 32 h and 48 h are the sums. Spec sheet copy at Creative Audio: up to 12 hours with ANC off, up to 8 hours with ANC on and talk time up to 5 hours with ANC off and 4.5 hours with ANC on. Only the 5 hour call figure is stored. No codec or volume is stated.2Retailer pagecreativeaudio.net/tune-flex-2-bRead 20 October 2026Spec sheet copy: music playtime with BT on up to 12 hours with ANC off and up to 8 hours with ANC on. Talk time up to 5 hours with ANC off and up to 4.5 hours with ANC on. The 5 hour figure is stored as the call row.3Retailer pagestartech.com.bd/jbl-tune-flex-2-earbudsRead 20 October 2026Spec table: ANC off 12 h, ANC on 8 h, talk time ANC off up to 5 h and ANC on up to 4.5 h.4Retailer pageworldwidestereo.com/products/jbl-tune-flex-2-noise-cancelling-true-wireless-headphones-blackRead 20 October 2026JBL copy: up to 8 hours of playtime plus three full charges (24 hours) in the case with ANC on, or up to 12 hours plus 36 hours with ANC off. Up to 48 hours total.14Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw64aa6671/pdfs/JBL_TUNE_FLEX_2_Specsheet_EN.pdfRead 21 October 2026Technical Specifications: music playtime with BT on up to 12 hrs with ANC off and up to 8 hrs with ANC on. Talk time up to 5 hrs with ANC off and up to 4.5 hrs with ANC on. Features: 8 hours plus three more charges (24 hours) in the case with ANC on, or 12 hours plus 36 hours with ANC off. No codec or volume is stated.
Longest claimed use per charge
11h
12h
Playback per charge with ANC (claimed)
6.5h
8h
Playback per charge without ANC (claimed)
11h
12h
Total with case (claimed)
43h
48h
Total with case and ANC (claimed)
26h
32h
Talk time (claimed)
6h
5h
Charging guidance
Current maker table claims 60 minutes to fully charge earbuds in the case and 85 minutes for the charging case and earbuds together by USB-C. The historical family page claimed 70 minutes for the combined set. No current empty-case full-charge duration is established. The headline claims up to seven hours after a ten-minute charge, without clearly identifying its earbud-only or case-inclusive scope. It is not assigned to the earbuds-only quick-charge field. A cable is omitted from current new-sale box lists, while transitional retailer stock may still include one. Generic CMF Buds disclaimer figures on the page do not match this Pro 2 table and are not substituted.2Maker product pageus.nothing.tech/products/cmf-buds-pro-2Read 8 October 2026Current US table names 85 minutes combined, versus the historical 70-minute family claim. The page also contains generic CMF Buds disclaimer text about 35.5-hour playback, two microphones per bud and other charge times that conflicts with the exact Pro 2 table. Those generic statements are not used as Pro 2 numeric facts. No charger input wattage or case-only duration is inferred.
The spec sheet lists a charging time of 2 hours from empty and does not say whether this covers the earbuds, the case or both.2Retailer pagecreativeaudio.net/tune-flex-2-bRead 20 October 2026Spec sheet copy: charging time 2 hrs from empty. No scope is given.
Quick charge time
Not available
Earbud playback after quick charge
Not available

Charging case

2 of 10 differ
User-replaceable case battery
Not available
Not available
Wireless standards
Not available
Not available
Wireless charging power
Not available
Not available
Speaker in case
Not available
Not available
Screen on case
Not available
Not available
Case works as audio transmitter
Not available
Not available

Controls

3 of 5 differ
Gestures
Double tap: skip forward, answer/hang up calls, Triple tap: skip back, reject calls, Tap and hold: switch ANC/Transparency2Maker product pageus.nothing.tech/products/cmf-buds-pro-2Read 8 October 2026
Tap once on the left earbud: switch between ANC and Ambient Aware (needs the JBL Headphones app), Tap twice on the left earbud: TalkThru (needs the JBL Headphones app), Tap once on the right earbud: play or pause, Tap twice on the right earbud: next track, Tap three times on the right earbud: previous track, Tap three times, then hold, on the right earbud: Ear Tip Sound Settings, Tap twice on either earbud during a call: answer or end the call, Hold either earbud for 2 seconds during a call: mute or unmute the microphone, Hold either earbud for 2 seconds: voice assistant, Tap once, then hold for 5 seconds, on either earbud: multi-point connection15Owner's manualsupport.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwf8af14f6/pdfs/LS_JBL_Tune%20Flex%202_QSG_Multilingual.pdfRead 21 October 2026Controls page (page 9), read from the icon rows and the tap legend. Footnote: enable advanced controls by connecting the earbuds to the JBL Headphones app. The advanced controls are ANC, Ambient Aware and TalkThru. Ear Tip Sound Settings is the triple tap plus hold row. The multi-point row is on page 8.

Sensors and health

1 of 9 differ
Sensors
Not available
Not available
Heart rate sensor
Not available
Not available
Skin temperature sensing
Not available
Not available
Hearing aid feature
Not available
Not available
Medical clearances
Not available
Not available
Hearing test
Not available
Not available
Hearing protection
Not available
Not available
Health features
Not available
Not available

Fit and durability

4 of 7 differ
Stabilisers
Not available
Not available
Dust and water rating, case
Not available
Not available
Water resistance depth
Not available
Not available

Software

2 of 6 differ
Precision finding
Not available
Not available
Live translation
Not available
Not available

Dimensions and weight

4 of 4 differ

Certifications

2 of 3 differ
Hi-Res Audio
Not available
Other certifications
Not available
Not available

In the box

2 of 2 differ
Cables included
ACMF Buds Pro 2
Not available

Warranty

0 of 1 differ

Both are also in the API. Back to all earbuds.