Dangbei Freedo vs Optoma ML750i
Bold marks the better figure where both are stated to the same standard. “—” means the manufacturer doesn't state it.
 Dangbei FreedoMSRP $599 |  Optoma ML750i | |
|---|---|---|
| Display system | ||
| Imaging technology | DLP | DLP |
| Technology brand | DLP | — |
| Number of imaging devices | — | 1 |
| Chip / panel diagonal | 0.23 in | — |
| Native aspect ratio | — | 16:10 |
| Native resolution | — | 1280 × 800 |
| Addressable resolution | 1920 × 1080 | — |
| Optics | ||
| Throw ratio | 1.2:1 | 1.5:1 |
| Projection distance table | 60″: 1.6 m · 80″: 2.1 m · 100″: 2.7 m · 120″: 3.2 m | 30″: 0.97 m · 40″: 1.29 m · 50″: 1.62 m · 60″: 1.94 m · 70″: 2.26 m · 80″: 2.58 m |
| Zoom type | Digital | None |
| Focus | Auto | Manual |
| Vertical lens shift | — | 0% |
| Fixed offset | 100% | 100% |
| Focal length | — | 14.95 mm |
| F-number | — | 1.9 |
| Interchangeable lens | — | No |
| Image size range | 40–180 in | 17–100 in |
| Vertical keystone | — | -40–40° |
| Horizontal keystone | -30–30° | — |
| Corner / warp correction | 4pt | — |
| Light source | ||
| Light source type | LED | LED |
| Light source detail | — | Red, green and blue LEDs |
| Light source life | Rated: 30,000 h | Rated: 20,000 h |
| Life definition | — | Unspecified |
| Brightness | ||
| ISO light output | 450 lm | — |
| ANSI lumens | — | 450 lm |
| Claimed brightness (non-standard) | — | 700 |
| Claimed brightness unit | — | Unspecified |
| Brightness uniformity (centre-to-corner) | — | 85% |
| Contrast & black level | ||
| Dynamic contrast | — | 20,000:1 |
| Colour | ||
| Rec.709 gamut | 124% | — |
| DCI-P3 gamut | 90% | — |
| Colour temperature presets | D65 | — |
| HDR | ||
| HDR formats | HDR10, HLG | — |
| Motion & gaming | ||
| Input lag (rated) | — | 1920×1080 @ 60 Hz: 16.6 ms |
| Audio | ||
| Speaker power | 6 W | 2 W |
| Speaker count | 2 | 1 |
| Audio channels | — | Mono |
| Audio outputs | HDMI ARC | 3.5 mm |
| HDMI ARC | Yes | — |
| Bluetooth speaker mode | Yes | — |
| Inputs, control & connectivity | ||
| Max input signal | 3840 × 2160 | 1920 × 1080 |
| HDMI port count | 1 | 1 |
| HDMI ports (feature-level) | HDMI: HDMI, ARC | HDMI: HDMI 1.4b |
| Horizontal scan frequency | — | 15.38–91.15 kHz |
| Vertical scan frequency | — | 24–85 Hz |
| USB media playback | Yes | Yes |
| RS-232 | — | Yes |
| Wi-Fi | Wi-Fi 5 | — |
| Bluetooth version | 5.1 | — |
| Firmware / software | ||
| Smart OS | Google TV | Android (uncertified) |
| Certified OS | Yes | — |
| Netflix | Native | — |
| Casting | Chromecast built-in | — |
| RAM | 2 GB | — |
| Storage | 16 GB | — |
| 3D | ||
| 3D support | — | Yes |
| Setup automation | ||
| Auto keystone | Yes | Yes |
| Screen fit / alignment | Yes | — |
| Obstacle avoidance | Yes | — |
| Eye-protection sensor | Yes | — |
| Integrated stand / gimbal | Type: gimbal · Tilt min deg: -30 · Tilt max deg: 135 · Tilt range deg: 165 | — |
| Acoustic noise | ||
| Fan noise (sound pressure) | — | Min: 29 dB(A) · Max: 32 dB(A) |
| Environment & power | ||
| Operating temperature | 0–35°C | 0–40°C |
| Operating humidity | — | 10–80%RH |
| Altitude / high-altitude mode | — | 2,500 m |
| Operating orientations | Table, Rear, Ceiling | Table, Ceiling, Rear |
| Rated voltage | — | 100–240 V |
| Rated frequency | — | 50–60 Hz |
| Power consumption (max) | 55 W | 67 W |
| Power consumption by mode | — | Bright typical 110v: 60 W · Bright max 110v: 69 W · Bright typical 220v: 57 W · Bright max 220v: 66 W · Eco typical 110v: 25 W · Eco max 110v: 29 W · Eco typical 220v: 23 W · Eco max 220v: 27 W |
| Standby power | — | 0.5 W |
| Power supply | External brick | External brick |
| Battery capacity | 60 Wh | — |
| Battery runtime | 150 min | — |
| USB-C PD input | 65 W | — |
| Physical & installation | ||
| Width | 109 mm | 105 mm |
| Depth | 131 mm | 106 mm |
| Height | 239 mm | 39 mm |
| Weight | 1.4 kg | 0.43 kg |
| Tripod socket | — | Yes |
| Safety & compliance | ||
| Photobiological risk group | RG2 | — |
| Laser product class | Class 1 | — |
| Safety & market certifications | FCC, CE, UKCA | FCC |
| Support & ownership | ||
| Warranty | 🇺🇸 US 1 yr | 🇺🇸 US 1 yr |
| Light-source warranty | — | 5 years or 12,000 hours (US) |
| User manual | https://cdn.shopify.com/s/files/1/0582/1127/0815/files/User_Guide_Freedo_Multiple_Languages_V1.pdf?v=1729135986 | https://region-resource.optoma.com/products/import/Documents/1879f1af-9587-4088-a150-cad4681dca36.pdf |
| In the box | ||
| Box contents | Projector, Power adapter, Remote control, Aaa batteries, Carrying bag, User manual | Carry case, Io cable, Power cord, Remote, Batteries, Quick start guide, Rs232 adapter |
| Remote type | Bluetooth | IR |