FiiO - FD7 vs Sony IER-M7 In-Ear

Every tracked fact about the two, side by side - prices, history lows, ratings and measured tuning. No verdict: which one to buy is the visitor's decision, always.

Not this pair? Swap either side:

vs

Open head-to-head

FiiO - FD7 FiiO Out of stock at every tracked store Lowest on record ₹47,999 on Saturday, 12th Sept, 2026 ★★★★★ 5.0 5.0 · 4 reviews Full prices & history

Sony IER-M7 In-Ear Headphones - Open Box - Clearance - No exterior packaging or eartips - Comes with carry case and cable Sony Out of stock at every tracked store Lowest on record ₹42,772 on Tuesday, 20th Oct, 2026 ★★★★★ 5.0 5.0 · 2 reviews Full prices & history

What is being compared

Both sides are in-ear monitors. The rows below are the facts each store publishes for this shelf - driver arrangement, impedance, sensitivity, plug and connectivity. A dash means the listing does not state that spec.

Spec FiiO Sony

Impedance 50Ω —

Sensitivity 111dB —

Connectivity Wired Wired

Connector MMCX —

Plug 3.5mm/4.4mm/2.5mm —

Measured tuning, side by side

Both curves are real community measurements (gold: FiiO · blue: Sony). Each is level-aligned to its own 200 Hz–1 kHz mean, so rig offsets don't skew the comparison.

FiiO Sony

Average level per band, relative to that curve's own 200 Hz–1 kHz middle - a taller bar plays louder there on the measured files. Same colours as the chart above.

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Hear them side by side

Signal A B

Hear A Hear B

Your earphones / headphones

Wearing your own earphones or headphones? Pick them here and the player pre-corrects for their sound, so the demo plays the target tuning itself - not both mixed together.

Same signal through both tunings at once - slide to blend. Start on pink noise for the clearest read.

Tuning distance ±1.37 dB RMS 92% match - Very close. Computed on a shared 40-point log grid, 20 Hz–10 kHz. A measurement-space fact, not a promise two ears agree.

Bass · 20–250 Hz FiiO +0.6 dB Average level difference in this band, both curves aligned to their own 200 Hz–1 kHz mean. Plus means FiiO plays louder there on the measured files; minus means Sony does.

Mids · 250–2,000 Hz FiiO +0.3 dB Average level difference in this band, both curves aligned to their own 200 Hz–1 kHz mean. Plus means FiiO plays louder there on the measured files; minus means Sony does.

Treble · 2,000–10,000 Hz FiiO +0.5 dB Average level difference in this band, both curves aligned to their own 200 Hz–1 kHz mean. Plus means FiiO plays louder there on the measured files; minus means Sony does.

What a curve cannot seeBuild, driver QC unit-to-unit, comfort, isolation, accessories, warranty and resale value sit outside the graph - usually what the pricier one is charging for.

Price over the last 30 days

Daily lowest price across every tracked store, from the site's own price history. The line is one product's own range - the two cards are not drawn to a shared scale.

FiiO - FD7 No tracked offer in stock In stock at 0 tracked stores

Sony IER-M7 In-Ear Headphones - Open Box - Clearance - No exterior packaging or eartips - Comes with carry case and cable No tracked offer in stock In stock at 0 tracked stores

Price gap right now n/a Both sides need a tracked offer to compare.

Stores with it in stock 0 vs 0 Active stores carrying each one right now - more stores usually means easier replacement and a steadier price.

The decision, factually

Cheaper right now n/a Lowest current price across all tracked stores.

Deepest discount ever seen Sony IER-M7 In-Ear Headphones - Open Box - Clearance - No exterior packaging or eartips - Comes with carry case and cable From each product's own recorded price history.

This page reports facts and expresses no opinion on which to purchase.

Keep going

EQ preset: FiiO EQ preset: Sony All IEMs More comparisons