HAPPRUN JQ820 vs Nebula Mars 3
 HAPPRUN JQ820$268.94 |  Nebula Mars 3$719.99 | |
|---|---|---|
| Key differences | ||
| Throw ratio | 1.3:1Derived | 1.2:1 |
| HDR formats | — | HDR10 |
| Fan noise | — | 28 dB(A) |
| Price | $268.94 | $719.99 |
| Room fit | ||
| Distance to screen | 2.9 m | 2.7 m |
| Brightness | ||
| Rated brightness | 1,000 lmDerived | 1,000 lmDerived |
| White light outputANSI | 1,000 lm ANSI | 1,000 lm ANSI |
| Claimed brightness (non-standard) | 2,000 lm | — |
| Brightness by mode | — | Eco 300 lm |
| Display system | ||
| Imaging technology | Single-panel LCD | DLP |
| On-screen resolution | 1080p (1920 × 1080)Derived | 1080p (1920 × 1080)Derived |
| Native resolution | 1080p (1920 × 1080) | 1080p (1920 × 1080) |
| Native aspect | 16:9Derived | 16:9Derived |
| Contrast | ||
| Dynamic contrast | 20,000:1 | 400:1 |
| Colour | ||
| Colour bit depth (per channel) | — | 8 bit |
| HDR | ||
| HDR formats | — | HDR10 |
| Light source | ||
| Light source | LED | LED |
| Light-source life | 100,000 h | 25,000 h |
| Optics | ||
| Throw ratio | 1.3:1Derived | 1.2:1 |
| Image size | — | 30–200 in |
| Zoom | Digital | Digital |
| Focus | Motorised | Motorised |
| Autofocus | Yes | Yes |
| Autofocus runs | — | When moved |
| Vertical lens shift | — | None |
| Horizontal lens shift | — | None |
| Auto keystone | Yes | Yes |
| Corner correction | 4-corner | 4-corner |
| Auto setup | Fit to screen, + Obstacle avoidance | Fit to screen |
| Lens material | Glass | — |
| Motion & gaming | ||
| Frame interpolation (MEMC) | — | Yes |
| Inputs & control | ||
| HDMI inputs | 2 × HDMI | HDMI |
| HDMI inputs (count) | 2Derived | 1Derived |
| Max input resolution | — | 4K UHD |
| Audio inputs | — | 3.5 mm |
| USB media playback | Yes | Yes |
| Smart platform | ||
| Wi-Fi | Wi-Fi 6 | Wi-Fi 5 |
| Bluetooth | 5.2 | 5.1 |
| Smart platform | — | Android TV |
| OS version | — | 11 |
| RAM | — | 2 GB |
| Storage | — | 16 GB |
| Netflix | Via dongle | No |
| Casting | + Miracast | + Chromecast built-in |
| Audio | ||
| Speaker power | 8 W | 40 W |
| Speakers | — | 3 |
| Audio formats | — | Dolby Audio |
| Audio outputs | + HDMI ARC, Bluetooth | + 3.5 mm, Bluetooth |
| HDMI audio return | ARCDerived | NoneDerived |
| Bluetooth speaker mode | — | Yes |
| Physical & installation | ||
| Dimensions (W × D × H) | 274 × 236 × 112 mm | 160 × 250 × 260 mm |
| Weight | 2,850 g | 4,500 g |
| Orientations | Table, Ceiling, Rear | Table, Ceiling, Rear |
| Built-in stand | — | Foot |
| Tripod socket | — | Yes |
| Exhaust | — | Rear |
| Ingress protection | — | IPX3 |
| Environment & power | ||
| Operating temperature | — | 0–35°C |
| Power draw | — | Max 150 W |
| Standby | — | Up to 1 W |
| Power supply | — | External adapter |
| Mains input | 100–240 V · 50/60 Hz | — |
| Battery | — | 185 Wh |
| Battery runtime | — | 300 min |
| Noise | ||
| Fan noise | — | 28 dB(A) |
| Safety & compliance | ||
| Marks | FCC | + CE, + UKCA, FCC |
| Support & ownership | ||
| Warranty | 1 yr | 1 yr |
| User manual | https://happrunlife.com/wp-content/uploads/2025/09/HAPPRUN-JQ820-User-Manual.pdf | https://salesforce-knowledge-download.s3.us-west-2.amazonaws.com/000029181/en_US/000029181.pdf |
| In the box | ||
| In the box | Power cord, Remote, + User manual, + HDMI cable | Power cord, + Power adapter, Remote, + Remote batteries, + Quick start guide |
| Remote | IR | — |