Compare detailed specifications, side-by-side differences, verified user reviews, and buying recommendations to help you make the right choice.
Deciding between the BenQ HT2150ST and the LG PH550 depends on your available space, storage capacity goals, and everyday usage style:
Designed for large households, bulk grocery shoppers, and long-term storage where total cubic feet is the highest priority.
Ideal for apartments, offices, dorms, or secondary kitchen use where space efficiency and neat organization are paramount.
The LG PH550 can be used completely without wires due to the Wi-Fi and Bluetooth connection. Its own battery allows the projector to work for 2.5 hours. The PH550 throws a 55-inch image from the 5.5ft distance and can be used for different tasks (movies, presentations, games, etc.).
| Specification | BenQ HT2150ST | LG PH550 |
|---|---|---|
| Settings | ||
| Keystone Adjustment Horizontal, +- Degrees | No | — |
| Keystone Adjustment Vertical, +- Degrees | 20 | — |
| Properties | ||
| Brightness, Lumens | 2200 | 550 |
| Power Consumption, W | 353 | 60 |
| Aspect Ratio | 16:9 | 16:9 |
| Input Lag, Ms | 16 | 33 |
| Projection Distance, M/ft | 0.9 - 3.3/1.8 - 9.8 | 0.7 - 3.1/1.8 - 9.8 |
| Noise Level, DBA | 37 | — |
| Projection Screen Size, Inch | 60 - 180 | 25 - 100 |
| Projection System | DLP | DLP |
| Pixel Number | 2304000 | 921600 |
| Color Reproduction | 1.07 billion | 1.07 billion |
| Throw Ratio Range | 0.69 - 0.83 | 1.39:1 |
| Contrast Ratio | 15000:1 | 100000:1 |
| Lamp | ||
| Lamp Life (eco Mode), Hours | 7000 | 30000 |
| Lamp Life (normal Mode), Hours | 3500 | 30000 |
| Lamp Type, W | 240 | — |
| Connectivity | ||
| MHL | No | No |
| Ethernet (RJ45) | No | No |
| SPDIF (optical) | No | No |
| Audio Output (3.5mm) | 1 | 1 |
| Audio Input (3.5mm) | 1 | No |
| USB (service) | 1 | No |
| Audio Input (RCA) | No | No |
| USB | 1 | 1 |
| Composite Video Input (RCA) | No | 1 |
| 12V Trigger | 1 | No |
| VGA Input | 1 | 1 |
| RS232 (DB-9pin) | 1 | No |
| Video Compatibility | ||
| NTSC | Yes | Yes |
| SECAM | Yes | Yes |
| PAL | Yes | Yes |
| Audio | ||
| Sound Type | stereo | stereo |
| Speaker Power, W | 20 | 2 |
| Integrated Speakers | Yes | Yes |
| Lens | ||
| Zoom Ratio | 1.3x | — |
| Lens Shift | vertical +/- 20% | — |
| Focal Length, Mm | 10.2 - 12.24 | — |
| F-number | 2.6 - 2.78 | — |
| Features | ||
| Projection Method | front, rear, ceiling mount, tabletop | front, rear, ceiling mount, tabletop |
| Security | Kensington lock, password protection | Kensington lock, password protection |
| 3D | Yes | Yes |
| Mouse Functions | No | No |
| REMOTE CONTROL | Yes | Yes |
| Dimensions | ||
| Weight, Kg/pounds | 3.60/7.93 | 0.4/1.4 |
| Size W X H X D, сm/inches | 12.1 x 38.1 x 27.6/4.8 x 15 x 10.9 | 2.5 x 15.2 x 10.1/1.7 x 6.9 x 4.3 |
| Resolution | ||
| Resolution Abbreviation | Full HD | HD |
| Max Resolution (resized) | 1920 x 1200 | 1920 x 1080 |
| Native Resolution | 1920 x 1080 | 1280 x 720 |
| Operating Temperature | ||
| Max, C/F | 40/104 | 40/104 |
| Min, C/F | 0/32 | 0/32 |
The main differences center around storage capacity, form factor, and convenience. The BenQ HT2150ST provides extensive bulk storage capacity best suited for homes, garages, or basements needing deep freeze space. In contrast, the LG PH550 offers a compact upright design that fits into smaller spaces with convenient shelf organization.
Chest-style freezers generally excel in thermal efficiency because cold air naturally settles at the bottom and does not escape when the lid is lifted. Compact upright models have lower total kilowatt-hour usage simply due to their smaller cubic volume, making both designs efficient for their respective intended purposes.
Both products are available through official brand stores and authorized retailers with full manufacturer warranties and fast delivery options. Click the "Check Best Price" buttons in the comparison cards above to view today's latest promotions, official deals, and current availability.
Measure your available floor clearance first. If you have open space in a garage, basement, or utility room and want to freeze items in bulk, choose the BenQ HT2150ST. If you have limited room in a kitchen, apartment, dorm, or office and prefer easy eye-level access to items, choose the LG PH550.
