HIDIZS Mermaid MS2 vs Open Box NiceHCK F1 Pro

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.

HIDIZS Mermaid MS2 Hybrid Dual Drivers HiFi Earphones - BLACK Hidizs Out of stock at every tracked store Lowest on record ₹5,958 on Thursday, 22nd Oct, 2026 Full prices & history

Open Box NiceHCK F1 Pro New-Generation 14.2mm Planar Diaphragm Driver IEMs - Open Box NiceHCK F1 Pro-4.4mm (Only Ship within US) NiceHCK Out of stock at every tracked store Lowest on record ₹5,990 on Friday, 16th Oct, 2026 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 Hidizs NiceHCK

Driver configuration — Planar

Driver setup — Planar

Driver size — 12mm & up

Impedance — 16Ω

Sensitivity — 104dB

Connectivity Wired Wired

Connector — 2-pin

Plug — 4.4mm balanced

Measured tuning, side by side

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

Hidizs NiceHCK

Tuning distance ±2.74 dB RMS 84% match - 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 Hidizs −2.7 dB Average level difference in this band, both curves aligned to their own 200 Hz–1 kHz mean. Plus means Hidizs plays louder there on the measured files; minus means NiceHCK does.

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

Treble · 2,000–10,000 Hz Hidizs −0.9 dB Average level difference in this band, both curves aligned to their own 200 Hz–1 kHz mean. Plus means Hidizs plays louder there on the measured files; minus means NiceHCK 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.

HIDIZS Mermaid MS2 Hybrid Dual Drivers HiFi Earphones - BLACK No tracked offer in stock In stock at 0 tracked stores

Open Box NiceHCK F1 Pro New-Generation 14.2mm Planar Diaphragm Driver IEMs - Open Box NiceHCK F1 Pro-4.4mm (Only Ship within US) 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 HIDIZS Mermaid MS2 Hybrid Dual Drivers HiFi Earphones - BLACK From each product's own recorded price history.

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

Keep going

EQ preset: Hidizs EQ preset: NiceHCK All IEMs More comparisons