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  3. RETRO BOX FIO-RETROBOX vs Boom Go 3i

FiiO RETRO BOX FIO-RETROBOX vs Soundcore Boom Go 3i

What RETRO BOX FIO-RETROBOX does better (0) and where Boom Go 3i wins (2) — every spec side by side.

FiiO RETRO BOX FIO-RETROBOX
0 advantages≈ $75
vs
Soundcore Boom Go 3i
Soundcore · 2026Boom Go 3i
9.6Score
2 advantages≈ $60
Higher score
Dimensions

Size comparison

RETRO BOX FIO-RETROBOXBoom Go 3i
98.8 × 76152.8102 × 10646
RETRO BOX FIO-RETROBOXBoom Go 3iDifference
Height76 mm106 mm−30 mm
Width98.8 mm102 mm−3.2 mm
Depth152.8 mm46 mm+106.8 mm

Drawn to the same scale from the official dimensions (front and side).

Why is RETRO BOX FIO-RETROBOX better than Boom Go 3i?

RETRO BOX FIO-RETROBOX has no measurable advantages in this pair.

Why is Boom Go 3i better than RETRO BOX FIO-RETROBOX?

  1. Battery life10.5 h vs 24 h2.3×
  2. Output power11 W vs 15 W+42%
Specifications

Side by side

Sound
Output power11 W15 W
Lowest frequency65 Hz—
Highest frequency20,000 Hz—
Hi-Res AudioYes—
Battery & charging
Battery life10.5 h24 h
Battery capacity—4,800 mAh
Power bank function—Yes
Mains powered—No
Battery powered (portable)YesYes
Connectivity
WirelessYesYes
Bluetooth version6—
Bluetooth codecs—SBC
Hi-res codec (LDAC / aptX HD / LHDC)—No
aptX—No
LDAC—No
Design & build
Width99 mm102 mm
Height76 mm106 mm
Depth153 mm46 mm
Protection rating—IP68
Water resistance (IPx)—IPx8
Dust protection (IP)—6
Colours—Midnight Black, Beige, Blue, Rose Gold
Features
Hands-free callsYes—
Party / stereo pairing—Yes
Light effects—Yes
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