Guides
Straight answers about connected dash cams
Whether a 4G dash cam needs a SIM card, how parking mode gets power without killing the car battery, and what a data plan actually pays for.
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Buying guide
Dash Cam microSD Cards: Why U3/V30, and What Decides How Long 64 GB Lasts
U3 and V30 both certify a 30 MB/s sustained write — the floor a continuously-writing dash cam needs, and why the H2 takes 32–256 GB cards at U3/V30 or above with 64 GB already installed. Why the headline read speed is the wrong number, what really decides how fast a card fills, and what a bigger card won't fix.
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Support
What to Do After a Parking Hit-and-Run: Getting Usable Footage
The clip is already on the cameras microSD card; the work is getting it off before the loop overwrites it. How to find the locked event clip, why the original beats the smaller cloud copy, what belongs in the bundle you send an insurer, and what dash cam footage genuinely cannot do for you.
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Before you buy
How Long Can a Dash Cam Watch a Parked Car Before Draining the Battery?
No honest brand quotes you hours. The parked watch ends at the monitoring window you set — 12 or 24 hours on the H2 — or at the low-voltage cutoff, whichever comes first. What decides which one fires, and how to set it so the worst case is a short watch, not a dead battery.
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Buying guide
What Does a Dash Cam Subscription Actually Pay For?
Cellular data and cloud storage — not recording, which should never be gated behind a plan. Exactly which features cross a network, which tier levers matter, and the three trial questions worth asking before you buy rather than after.
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Installation
Hardwire vs OBD vs Battery Pack: Powering a Dash Cam for Parking Mode
Parking mode needs power the car keeps supplying after the ignition is off, which a cigarette-lighter socket usually doesn't. The three ways to fix that, what each of the hardwire kit's three wires does, and the one setting that keeps you from a flat battery.
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Before you buy
Do 4G Dash Cams Need a SIM Card?
Some do, some don't — and it decides whether the camera works the day it arrives. Also worth knowing: "no SIM card needed" is not the same as "no data cost". What each connection method actually gets you, and what still records with no plan at all.