Compare detailed specifications, side-by-side differences, verified user reviews, and buying recommendations to help you make the right choice.
Deciding between the BenQ TH671ST and the Acer H7550STz 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.
(4.8)
If you’re looking for the middle-class entertainment projector with diverse connectivity and bright display, take a look at the BenQ TH671ST review. This projector has won an award as a gaming projector in 2019, thanks to its short throw, large screen, fast resp
Read More| Specification | BenQ TH671ST | Acer H7550STz |
|---|---|---|
| Audio | ||
| Integrated Speakers | Yes | Yes |
| Sound Type | mono | — |
| Speaker Power, W | 1 | 10 |
| Lens | ||
| Lens Shift | vertical +/- 40% | — |
| Focal Length, Mm | 10.2 - 12.24 | 10.20-11.22 |
| F-number | 2.6 - 2.78 | 2.6-2.78 |
| Zoom Ratio | 1.2x | 1.1x |
| Properties | ||
| Projection Screen Size, Inch | 60 - 180 | 54.3-299.2 |
| Projection System | DLP | DLP |
| Pixel Number | 2304000 | 8300000 |
| Color Reproduction | 1.07 billion | — |
| Throw Ratio Range | 0.69 - 0.83 | 0.69:1 - 0.76:1 |
| Contrast Ratio | 10000:1 | 16000:1 |
| Brightness, Lumens | 3000 | 3000 |
| Power Consumption, W | 355 | 339 |
| Aspect Ratio | 16:9 | 16:9 |
| Input Lag, Ms | 16 | — |
| Projection Distance, M/ft | 0.9 - 3.3/3.2 - 9.8 | 0.9-4.6/2.9-15 |
| Noise Level, DBA | 33 | 33 |
| Features | ||
| Projection Method | front, rear, ceiling mount, tabletop | — |
| Security | Kensington lock, password protection | — |
| 3D | No | Yes |
| Mouse Functions | No | — |
| REMOTE CONTROL | Yes | Yes |
| Connectivity | ||
| Audio Output (3.5mm) | 1 | 1 |
| USB (service) | 1 | — |
| Audio Input (3.5mm) | 1 | 1 |
| USB | 1 | Yes |
| Audio Input (RCA) | No | — |
| 12V Trigger | No | — |
| Composite Video Input (RCA) | No | 1 |
| RS232 (DB-9pin) | 1 | — |
| VGA Input | 1 | 1 |
| MHL | No | — |
| Ethernet (RJ45) | No | — |
| SPDIF (optical) | No | — |
| Dimensions | ||
| Weight, Kg/pounds | 2.2/5.9 | 3.4/7.5 |
| Size W X H X D, сm/inches | 27.9 x 10.1 x 22.8/11.7 x 4.6 x 9.5 inches | 35.5 x 24.1 x 9.9/14 x 9.5 x 3.9 |
| Resolution | ||
| Resolution Abbreviation | Full HD | Full HD |
| Max Resolution (resized) | 1920 x 1200 | 1920 x 1080 |
| Native Resolution | 1920 x 1080 | 1920 x 1080 |
| Video Compatibility | ||
| SECAM | Yes | — |
| PAL | Yes | — |
| NTSC | Yes | — |
| Operating Temperature | ||
| Max, C/F | 40/104 | 40/104 |
| Min, C/F | 0/32 | 0/32 |
| Settings | ||
| Keystone Adjustment Horizontal, +- Degrees | No | — |
| Keystone Adjustment Vertical, +- Degrees | 40 | 40 |
| Lamp | ||
| Lamp Life (eco Mode), Hours | 15000 | 6000 |
| Lamp Life (normal Mode), Hours | 10000 | 4000 |
| Lamp Type, W | 240 | 210 |
The main differences center around storage capacity, form factor, and convenience. The BenQ TH671ST provides extensive bulk storage capacity best suited for homes, garages, or basements needing deep freeze space. In contrast, the Acer H7550STz 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 TH671ST. If you have limited room in a kitchen, apartment, dorm, or office and prefer easy eye-level access to items, choose the Acer H7550STz.
