How do I add a speedometer to my cycling video on iPhone?

Use SplitRig. Open the app, tap the widget picker, enable Speedometer. The widget shows your real-time GPS speed and is baked directly into the saved video file — no editing required. Free for iPhone 11 and up.

What's the best speedometer app for cycling?

SplitRig is the strongest pick for cycling speedometer overlays on iPhone. It composites the speed at the GPU layer (frame-perfect alignment), updates at 2Hz, supports km/h or mph (auto-detected), and works alongside seven other live overlay widgets — distance, altitude, pace, goal gauge, and more.

Does SplitRig work without an internet connection?

Yes. The speedometer uses GPS (which works offline), the recording happens entirely on-device, and SplitRig requires no account or cloud sync. Perfect for backcountry rides without cell coverage.

Best speedometer overlay app for cycling videos on iPhone

Real-time GPS speed, distance, altitude — baked into your cycling videos in one tap.

Why cyclists want speedometer overlays

Speedometer overlays turn a cycling video from "I went on a ride" into "I averaged 32 km/h on this descent." The number on screen converts a personal experience into objective content. For coaching, racing recap, training journals, and YouTube/TikTok cycling channels, the speedometer is essential.

The catch: most cycling apps record GPS data separately from the video, so creators have to overlay the speed number in post-production using DaVinci, Final Cut, or third-party services. SplitRig bakes the speedometer directly into the recording.

How SplitRig's speedometer works

The speedometer reads from the iPhone's CoreLocation framework — the same GPS engine the Maps app uses. Two technical details that matter:

Updates at 2Hz — twice per second. Smooth enough that the number doesn't feel laggy on screen.
Composited at the GPU layer — the speed value is rendered with the video frames using Metal, not added afterward. Frame-perfect alignment with the action.

The widget displays current speed in km/h or mph (auto-detected from your iPhone's region) at any size you choose, in any position on screen.

Set it up

Open SplitRig. Tap the widget picker in the control tray.
Tap "Speedometer" to enable.
Drag the widget anywhere on screen. Pinch to resize.
Hit record. The speedometer updates live in your video.

Position is remembered per orientation. Set it once, and it stays in the same spot for every future ride.

Beyond the speedometer — the full activity widget set

SplitRig has eight live overlays, all designed for outdoor activity:

Speedometer — current speed, 2Hz updates
Distance — total covered, in km or miles
Duration — recording elapsed time
Altitude — current elevation, perfect for hill rides
Pace — minutes per km/mile
Goal Gauge — set a distance target (e.g., 25 km loop), the bar fills as you go
Sound Level — ambient audio meter, useful for traffic-aware city rides
Watermark — optional SplitRig logo

Enable as many as you want at once. Each is independently positioned, resized, and baked into the same final video.

Cycling-specific tips

Mount portrait or landscape based on platform. For YouTube long-form cycling vlogs, use landscape. For TikTok/Reels recaps, use portrait. SplitRig records in either orientation natively.
Handlebar mount preferred. The handlebar gives a stable point of view that matches what your eyes see. Chest mounts work but bob with pedaling cadence.
Use Action Cam mode for descents. The ultra-wide + Cinematic Extended stabilization handle high-speed shaking without smearing.
Pair with Apple Watch. Start/stop the recording from your wrist when you can't reach the phone safely.
Add the Goal Gauge for training rides. Set the target distance, the visual bar adds dramatic tension to the recap.

Battery and thermal considerations

GPS recording + dual camera + 60 fps Action Cam can drain an iPhone battery fast. Three optimizations:

Plug in if you can. Most cyclists carry a USB battery or use a handlebar-mounted power bank. The iPhone happily records while charging.
Enable Eco Mode to dim the screen after 10 seconds of recording. Saves significant battery on long rides.
Switch to 24 fps Cinematic for cruising portions — same look, ~20% less power and heat than 30 fps.

Iron Stream thermal management means even at the limit, the recording continues — just at a slightly lower frame rate temporarily.

Privacy — location stays on device

The speedometer reads location data on-device only. Your GPS coordinates are never transmitted, stored on a server, or shared with any third party. SplitRig has no analytics, no accounts, and no cloud component. The video stays on your iPhone until you choose to share it.

This is unusual for cycling apps — most cloud-based cycling platforms (Strava, Komoot, etc.) require an account and track your routes on their servers. SplitRig stays out of that loop.

Frequently asked

Best app to add a speedometer to iPhone videos? SplitRig. It overlays GPS speed onto the video in real time, baked into the file — no editing required. Free.

Can I see distance and altitude on my cycling video? Yes. SplitRig has eight overlay widgets — speed, distance, duration, altitude, pace, goal gauge, sound level, and watermark — all live, all positionable.

Does the GPS work indoors (e.g., on a turbo trainer)? No, GPS needs sky visibility. For indoor training, the speedometer reads zero. The other overlays (duration, sound level, watermark) still work.