Skip to content
Specdex
Compare now
Eufy S330 4K Solo Cam (1080p) — Security/dash cam · 1080p
Eufy

Eufy S330 4K Solo Cam (1080p)

Security/dash cam · 1080p

85
/ 100
From $220
VS
Eufy S330 4K Solo Cam (1080p) wins by 1
Opal Tadpole — 2K
Opal

Opal Tadpole

2K

84
/ 100
From $175
Specdex verdict

Eufy S330 4K Solo Cam (1080p) takes it — here’s why.

In our weighted Specdex score, Eufy S330 4K Solo Cam (1080p) lands at 85 and Opal Tadpole at 84. That puts Eufy S330 4K Solo Cam (1080p) ahead by 1 points — a narrow margin driven mostly by its strengths in the categories below.

Pick Eufy S330 4K Solo Cam (1080p) if…

  • ✓Weatherproof (most)
  • ✓Night vision
  • ✓Cloud + local storage options

Pick Opal Tadpole if…

  • ✓USB-C connectivity (modern)
  • ✓Auto framing (some)
  • ✓Software tuning
Share this comparison: Share to Reddit X / Twitter

Winner by scenario

Derived from the sub-score breakdown · not a separate test

Build

Tie

Compared on the build sub-score

Effectively tied — neither pulls a 2-point weighted lead.

Features

Tie

Compared on the features sub-score

Effectively tied — neither pulls a 2-point weighted lead.

Image

Tie

Compared on the image sub-score

Effectively tied — neither pulls a 2-point weighted lead.

Value for money

Opal Tadpole

Specdex score per dollar at MSRP

Opal Tadpole more score per dollar ($175 vs $220).

Eufy S330 4K Solo Cam (1080p) 85
vs
84 Opal Tadpole

Score breakdown

Eufy S330 4K Solo Cam (1080p)
85
image 81
features 85
build 86
value 82
Opal Tadpole
84
image 82
features 84
build 86
value 82

Specs side-by-side

Eufy S330 4K Solo Cam (1080p) versus Opal Tadpole — full spec comparison
Spec Eufy S330 4K Solo Cam (1080p) Opal Tadpole
Type
Security/dash cam
—
Resolution
▲ 1080p
2K
Release year
2023
—

Eufy S330 4K Solo Cam (1080p)

Pros
  • +Weatherproof (most)
  • +Night vision
  • +Cloud + local storage options
Cons
  • −Cloud storage subscription
  • −Wi-Fi dependency
  • −Privacy considerations

Opal Tadpole

Pros
  • +USB-C connectivity (modern)
  • +Auto framing (some)
  • +Software tuning
Cons
  • −Fixed focal length on most
  • −Low-light varies wildly
  • −Mounting can be fiddly

FAQ: Eufy S330 4K Solo Cam (1080p) vs Opal Tadpole

Which is better, Eufy S330 4K Solo Cam (1080p) or Opal Tadpole? +

Eufy S330 4K Solo Cam (1080p) scores 85 on our weighted rubric — ahead by 1. Your best pick depends on the sub-scores above.

Is Eufy S330 4K Solo Cam (1080p) worth the price? +

At $220, Eufy S330 4K Solo Cam (1080p) delivers a Specdex score of 85 — strongest in build.

Is Opal Tadpole worth the price? +

At $175, Opal Tadpole delivers a Specdex score of 84 — strongest in build.

Does Eufy S330 4K Solo Cam (1080p) or Opal Tadpole last longer? +

Based on our long-term update and support ratings, both ship with multi-year support. Battery and reliability scores are visible in the breakdown above.

Which is the better value, Eufy S330 4K Solo Cam (1080p) or Opal Tadpole? +

Opal Tadpole — more score per dollar ($175 vs $220). Specdex score per dollar at MSRP.