Specifications comparison LG 55LK520 vs Vizio M550SV
| LG 55LK520 | Vizio M550SV | |
| VIDEO | ||
| Screen Size | 54.6" Diagonally | 54.6" Diagonally |
| Display Type | CCFL Back-Lit LCD | LED Edge-Lit |
| Resolution | 1080p | 1080p |
| Contrast Ratio | 150,000:1 | 2,000,000:1 |
| Response Time | 2.4 ms | 5 ms |
| Refresh Rate | 120Hz | 240Hz |
| Native Resolution | 1920 x 1080 | 1920 x 1080 |
| AUDIO | ||
| Sound Effect System | Infinite Sound | SRS TruSurround HD™ |
| Sound Output | 10W x 2 | 15W x 2 |
| INPUT & OUTPUT | ||
| HDMI | 2 rear + 1 side | 4 side |
| Composite (AV) | 1 rear + 1 side | 1 (shared w/ component) |
| Component | 2 rear | 1 (shared w/ composite) |
| USB 2.0 | 1 side | 2 side |
| Ethernet | - | 1 rear |
| PC input | 1 rear | 1 rear |
| RF Connector | 1 rear | 1 rear |
| Optical Digital Audio Output | 1 rear | 1 rear |
| Headphone Out | 1 side | - |
| FEATURES | ||
| Picture-in-Picture | - | Yes |
| Game Mode | Yes | - |
| Swivel Stand | +20º / -20º | - |
| SYSTEM | ||
| Tuner | NTSC/ATSC/Clear QAM | - |
| DIMENSION | ||
| Set size(WXHXD) with stand | 52.3” x 34.3” x 13.0” | 50.8" x 34.0" x 10.6" |
| Set size(WXHXD) without stand | 52.3” x 31.3” x 3.8” | 50.8" x 31.6" x 2.0" |
| Package size(WXHXD) | 58.9” x 34.7” x 11.3” | 59.8" x 35.4" x 7.4" |
| WEIGHT | ||
| Set weight with stand | 72.8 lbs. | 57.7 lbs. |
| Set weight without stand | 65.7 lbs. | 52.0 lbs. |
| Package weight | 85.5 lbs. | 71.0 lbs. |
| REVIEWS | ||
| Links to Consumer Reviews | Read Reviews | Read Reviews |
| COMPARE PRICES | Where to Buy | Where to Buy |
| List price | Check best price from retails below | Check best price from retails below |

