
Apexcam M80 AIR
Score: 77/100
Sjcam SJ4000
Score: 74/100Rankings

The Apexcam M80 AIR is a budget-friendly 4K action camera that offers dual batteries, a wide 170° view and waterproof capability, making it suitable for casual outdoor shooting. Its electronic stabilization and Wi-Fi are adequate but fall short of higher-end competitors.

The SJ4000 Pro-Grade delivers 4K video with 3-axis EIS, dual removable batteries and waterproof protection, making it a solid budget option, though its limited frame rates, short 4K battery life and lack of external audio inputs keep it from professional use.
| Attribute | ![]() | ![]() |
|---|---|---|
2,160 pbest | 2,160 pbest | |
120 fpsbest | 30 fps | |
3.33 hoursbest | 1.17 hours | |
| ↓ lower better | 432 g | 230 gbest |
40 mbest | 30 m | |
170 degreesbest | 170 degreesbest | |
1,050 mAhbest | 900 mAh | |
| ↓ lower better | 2 hoursbest | 3.5 hours |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Build & Design(2) | ||
Weight (g) | 432 g | 230 g |
Waterproof Depth (m) | 40 m | 30 m |
Battery & Power(3) | ||
Battery Capacity (mAh) | 1050 mAh | 900 mAh |
Battery Life (hours) | 3.33 hours | 1.17 hours |
Charging Time (hours) | 2 hours | 3.5 hours |
Video & Imaging(1) | ||
Frame Rate (fps) | 120 fps | 30 fps |
Connectivity(1) | ||
USB Type | Micro‑USB 2.0 | Micro-USB |


Products in the top-left offer the best value (high score, low price).

Professional reviewers praise its value proposition and 4K capability, but note that the EIS falls short of premium stabilization and the app experience is rudimentary.
Everyday users love the affordable 4K quality and long battery life, but complain about Wi-Fi drops, occasional overheating, and the limited 64 GB storage ceiling.

Professional reviewers view the SJ4000 Pro-Grade as a compelling budget alternative, praising its 4K capability, solid stabilization and generous accessory bundle, while warning that its sensor size limits photo quality and its lack of HDMI or external mic makes it unsuitable for higher-end productions.
Everyday users appreciate the camera's compactness, waterproof housing and dual-battery endurance for outdoor activities, but repeatedly criticize the misleading 40 MP photo claim, short battery life in 4K, limited Wi-Fi range and the absence of professional audio inputs.
“Perfect for my son's birthday - records amazing ski videos.”

“Battery life is great - used both all day hiking.”

“Waterproof case worked perfectly at 30 m while snorkeling.”


