Epson Lifestudio Flex vs Optoma Photon Life PK31
Bold marks the better figure where both are stated to the same standard. “—” means the manufacturer doesn't state it.
 Epson Lifestudio FlexMSRP $849.99 |  Optoma Photon Life PK31MSRP $1,099 | |
|---|---|---|
| Display system | ||
| Imaging technology | 3LCD | DLP |
| Technology brand | 3LCD | — |
| Number of imaging devices | 3 | — |
| Chip / panel diagonal | 0.62 in | 0.47 in |
| Native aspect ratio | 16:9 | 16:9 |
| Native resolution | 1920 × 1080 | 1920 × 1080 |
| Pixel shift | None | — |
| Addressable resolution | — | 3840 × 2160 |
| Optics | ||
| Throw ratio | 1.2:1 | 1.5–1.65:1 |
| Projection distance table | 80″: 2.13–7.16 m · 100″: 2.68–8.96 m · 120″: 3.2–10.79 m · 150″: 4.02–13.47 m | 60″: 1.99–2.19 m · 80″: 2.66–2.92 m · 100″: 3.32–3.65 m · 120″: 3.99–4.38 m · 150″: 4.98–5.48 m |
| Zoom type | Digital | Optical |
| Zoom ratio | 3.33× | 1.1× |
| Focus | Auto | Manual |
| Fixed offset | — | 105% |
| Focal length | 16.6 mm | 15.84–17.45 mm |
| F-number | 1.6 | 2–2.05 |
| Image size range | 30–150 in | 60–150 in |
| Vertical keystone | -20–20° | -40–40° |
| Horizontal keystone | -20–20° | -40–40° |
| Corner / warp correction | — | Warp |
| Light source | ||
| Light source type | LED | LED |
| Light source detail | RGB LED | RGB LED |
| Light source life | High: 20,000 h · Eco: 20,000 h | Eco: 30,000 h |
| Life definition | 50% brightness | — |
| Brightness | ||
| ISO light output | 700 lm | 900 lm |
| Colour light output (CLO) | 700 lm (colour) | — |
| Brightness uniformity (centre-to-corner) | — | 90% |
| Contrast & black level | ||
| Dynamic contrast | 5,000,000:1 | 200,000:1 |
| Colour | ||
| DCI-P3 gamut | — | 95% |
| Bit depth / 'number of colours' | 10 bit | 30 bit |
| Calibration & picture control | ||
| Colour management system | 6-axis | — |
| Picture mode memories | — | 3 |
| HDR | ||
| HDR formats | HDR10, HLG | HDR10, HLG |
| Max HDR input | 1920 × 1080 | — |
| Motion & gaming | ||
| Frame interpolation (MEMC) | Yes | — |
| Max refresh rate | 1920×1080: 60 Hz | 1920×1080: 240 Hz · 3840×2160: 60 Hz |
| Input lag (rated) | — | 3840×2160 @ 60 Hz: 16 ms · 1920×1080 @ 60 Hz: 16 ms · 1920×1080 @ 120 Hz: 8 ms · 1920×1080 @ 240 Hz: 4.6 ms |
| Audio | ||
| Speaker power | 10 W | 5 W |
| Speaker count | 2 | 1 |
| Audio channels | Stereo | — |
| Audio partner | Bose | — |
| Audio outputs | 3.5 mm, HDMI ARC, HDMI eARC | 3.5 mm |
| HDMI ARC | Yes | — |
| HDMI eARC | Yes | — |
| Bluetooth speaker mode | Yes | — |
| Bluetooth audio out | Yes | No |
| Inputs, control & connectivity | ||
| Max input signal | 1920 × 1080 | 3840 × 2160 |
| HDMI port count | 1 | 1 |
| HDMI ports (feature-level) | HDMI: HDMI 2.0, HDCP 1.4, eARC | HDMI: HDMI 2.0 |
| Horizontal scan frequency | — | 15–255 kHz |
| Vertical scan frequency | 23.98–60 Hz | 23–240 Hz |
| USB media playback | Yes | — |
| LAN control | — | No |
| Wi-Fi | Wi-Fi 6 | None |
| Bluetooth version | 5.2 | — |
| Firmware / software | ||
| Smart OS | Google TV | None |
| OS version | Android 14 | — |
| Netflix | Native | — |
| Casting | Chromecast built-in | — |
| Update policy | Software updates provided for 7 years from purchase (Epson UK legal statement) | — |
| Setup automation | ||
| Autofocus | When moved | — |
| Auto keystone | Yes | — |
| Screen fit / alignment | Yes | — |
| Obstacle avoidance | Yes | — |
| Eye-protection sensor | Yes | — |
| Integrated stand / gimbal | Tilt up deg: 90 · Tilt down deg: 15 · Swivel left deg: 90 · Swivel right deg: 90 | — |
| Acoustic noise | ||
| Fan noise (sound pressure) | Normal: 28 dB(A) · Eco: 23 dB(A) | Eco: 26 dB(A) · Bright: 32 dB(A) |
| Environment & power | ||
| Operating temperature | 5–35°C | 0–40°C |
| Operating humidity | 20–80%RH | — |
| Altitude / high-altitude mode | 3,048 m | 3,048 m |
| High-altitude mode | — | Yes |
| Operating orientations | Table, Rear | Table, Ceiling, Rear |
| Rated voltage | 90–264 V | 100–240 V |
| Rated frequency | 50–60 Hz | 50–60 Hz |
| Power consumption (max) | 137 W | 110 W |
| Power consumption by mode | Normal: 137 W · Quiet: 87 W | Eco typical: 55 W · Bright typical: 86 W |
| Standby power | 0.5 W | 0.5 W |
| Networked standby power | 2 W | — |
| Power supply | External brick | External brick |
| Physical & installation | ||
| Width | 190 mm | 238 mm |
| Depth | 190 mm | 215 mm |
| Height | 248 mm | 118 mm |
| Weight | 4 kg | 2.2 kg |
| Colours / finishes | White | — |
| Tripod socket | No | Yes |
| Safety & compliance | ||
| Photobiological risk group | — | RG2 |
| Safety & market certifications | FCC | FCC |
| Support & ownership | ||
| Warranty | 🇺🇸 US 2 yr · 🇨🇦 CA 2 yr · 🇬🇧 GB 5 yr or 12,000 h | 🇺🇸 US 1 yr |
| User manual | https://download2.ebz.epson.net/sec_pubs_visual/eai/projectors/pdf/useg/EN/UsersGuide_EF72_EN_EAI.pdf | https://region-resource.optoma.com/products/documents/gd5s39XIvjRwwGTvf9nC00Dh4xpLDBTrjLLA96Ro.pdf |
| In the box | ||
| Box contents | Projector, Power adapter, Power cord, Remote, Batteries | Power adapter, Remote, Batteries, User manual |
| Remote type | Voice | IR |