Fish Finders: Screen Sizing & Marine Networking: Ethernet & NMEA 2000

A 9-inch screen looks huge in the store when your nose is 30 cm away from the display glass. On the front deck of your boat, your eyes are 1.6 to 1.8 m (5.5 to 6 ft) above the screen! Here is how to size and network your displays properly.

Boat PositionViewing DistancePrimary Jobs on the WaterRecommended Screen Setup
Console / Helm (驾驶位)50–75 cm (20–30 in) (seated right behind the steering wheel)Running on plane with Lake Map + 2D Depth; idling at 6 km/h with Side View + Down View to mark offshore spotsSingle 9"–12" screen (split Map + Side Scan), OR Dual 9"–12" screens (Left screen = Map + 2D; Right screen = full-width Side View)
Bow / Front Deck (船头作钓位)150–185 cm (5–6 ft) (standing up while working a rod and foot pedal)Forward-Facing Live Sonar (Live View) + Bow Map with Heading Line + 2D/Down ViewSingle 10"–12" screen (minimum 9" if dedicated solely to Live View), OR Dual-Stacked 10"–12" screens (Bottom = Live View full screen; Top = Map + 2D)

Ethernet vs NMEA 2000 vs Wireless Tablet Extension Screens

  • Ethernet Cable (高速以太网线): Connects two graphs of the same brand to share high-bandwidth data: live sonar images, Side/Down transducers, map cards (in most series), and full two-way Waypoint Sync (mark a rock pile at the console, and it instantly appears on your bow screen!).
  • NMEA 2000 Backbone (低速传感器总线): A universal marine network that shares GPS heading sensors, engine RPM/fuel/temp gauges, and audio. The #1 NMEA 2000 accessory is an External GPS + Magnetic Heading Sensor (like the Lowrance Point-1 or Garmin 24xd): it stops your map from spinning wildly when your boat is sitting still or drifting backward!
  • Cost-Saving Extension Screen Trick (用 iPad / 平板做无线扩展副屏): Garmin (ActiveCaptain app), Lowrance (Link app), and Humminbird all build Wi-Fi into their mid/high-tier graphs. You can mount a waterproofed iPad or Android tablet in a heavy-duty cradle at the bow or console and mirror/control your fish finder screen wirelessly without buying a second $2,500 head unit!

Top 10 in four markets

United States

  1. Garmin GPSMAP 8616xsv 16" Touch Display — $5,999. Full HD 1920x1080 IPS multi-touch display; lightning processor handles LiveScope Plus with zero latency.
  2. Lowrance HDS PRO 16 with Active Imaging HD — $4,999. SolarMAX HD 16-inch display supports two ActiveTarget 2 live transducers simultaneously with Scout 360.
  3. Humminbird APEX 16 MEGA SI+ Chartplotter — $4,999. Full HD 1080p display with dual independent sonar channels and HDMI in/out for console video.
  4. Garmin GPSMAP 8412xsv 12" Marine Display — $3,999. The most popular tournament bow graph in America; razor-sharp target separation with LiveScope.
  5. Lowrance HDS PRO 12 Multi-Touch Display — $3,399. Direct Ethernet live sonar overlay and ultra-high-definition 1.2MHz Active Imaging HD support.
  6. Humminbird SOLIX 15 CHIRP MEGA SI+ G3 — $3,699. Cross Touch 15.4-inch display with customized multi-panel layouts and MEGA 360 integration.
  7. Furuno NavNet TZtouch3 16" (TZT16F) — $5,595. Industrial-grade marine MFD; built-in 1kW TruEcho CHIRP with blistering quad-core processing power.
  8. Raymarine Axiom 2 Pro 12 RVM RealVision MAX — $3,799. HydroTouch water-shedding nano-coated screen with 6-core processor and RealVision 3D CHIRP.
  9. Simrad NSS16 evo3S with Active Imaging — $5,499. Ultra-wide viewing angle SolarMAX IPS screen with rotary dial for rough water navigation.
  10. Garmin GPSMAP 9019 19" 4K Tournament MFD — $8,999. Massive 19-inch 4K touchscreen glass helm display with fastest network processing on earth.

Canada

  1. Garmin GPSMAP 8616xsv Canada Edition — C$8,299. 16-inch full HD IPS screen allows quad-splitting LiveScope, lake charts, down scan and side scan.
  2. Lowrance HDS PRO 16 Canada Spec — C$6,899. SolarMAX HD shines brightly under direct Canadian summer sunlight without polarized sunglass blackout.
  3. Humminbird APEX 16 MEGA SI+ Canada — C$6,899. 1080p full HD clarity differentiates fish suspended in dense northern cabbage weed beds.
  4. Garmin GPSMAP 8412xsv 12" Canada — C$5,499. The gold standard front-deck graph for targeting suspended smallmouth on Lake Simcoe.
  5. Lowrance HDS PRO 12 Display Canada — C$4,699. Connects dual ActiveTarget 2 transducers to spot smallmouth cruising 80 feet away.
  6. Humminbird SOLIX 15 MEGA SI+ G3 CA — C$5,199. Cross Touch keypad ensures positive operation even when wearing heavy sub-zero winter gloves.
  7. Raymarine Axiom 2 Pro 12 RVM Canada — C$5,299. HydroTouch nano coating sheds freezing spray and rain instantly on Great Lakes runs.
  8. Furuno NavNet TZtouch3 12" (TZT12F) — C$4,695. Industrial reliability with built-in deep-water CHIRP for multi-species Canadian tournaments.
  9. Simrad NSS12 evo3S Canada Edition — C$4,599. Rotary controller allows one-hand zoom adjustment while steering through treacherous rocky rapids.
  10. Garmin GPSMAP 9016 16" 4K Touch Display — C$10,999. The ultimate luxury helm screen with ultra-fast gigabit network backbone for mega bass rigs.

Japan

  1. Garmin GPSMAP 8412xsv Japan Spec — ¥680,000. The undisputed tournament king of Lake Biwa; crystal-clear LiveScope target resolution.
  2. Lowrance HDS PRO 12 Japan Edition — ¥580,000. SolarMAX HD screen renders crisp ActiveTarget 2 imaging across Japanese reservoir structures.
  3. Humminbird APEX 13 MEGA SI+ Japan — ¥590,000. Full HD 1080p resolution provides unparalleled detail of Biwa submerged weed canopies.
  4. Garmin GPSMAP 8416xsv 16" Japan — ¥980,000. Massive 16-inch multi-touch display dominates top tournament bow decks across Japan.
  5. Lowrance HDS PRO 16 Japan Spec — ¥880,000. Dual live sonar capability allows Scout 360 mode and Forward mode at the same time.
  6. Humminbird SOLIX 12 CHIRP MEGA SI+ JP — ¥490,000. Cross Touch keypad delivers rapid button presets for instant screen switching on choppy lakes.
  7. Furuno NavNet TZtouch3 12" Japan — ¥520,000. Commercial-grade durability and lightning chart redraw preferred by Japanese coastal pros.
  8. Raymarine Axiom 2 Pro 12 Japan — ¥540,000. HydroTouch nanocoating repels water drops during high-speed rain runs on Tone River.
  9. Simrad NSS12 evo3S Japan Spec — ¥510,000. Glass bridge elegance combined with high-torque rotary knob control.
  10. Garmin GPSMAP 9019 19" Japan — ¥1,480,000. The pinnacle of marine electronics; ultra-luxury glass console display on Lake Biwa.

China

  1. Garmin 佳明 GPSMAP 8412xsv 12寸 旗舰车机 — ¥28,800. The gold standard bow graph in China tournament fishing; razor-sharp LiveScope Plus resolution.
  2. Lowrance Lowrance HDS PRO 12 高清旗舰车机 — ¥24,500. SolarMAX HD screen delivers high brightness with dual ActiveTarget 2 simultaneous inputs.
  3. Garmin 佳明 GPSMAP 8616xsv 16寸 全高清巨屏 — ¥42,000. Full HD 1080p 16" IPS screen; quad split-screen lets anglers view all sonars without clutter.
  4. Humminbird 蜂鸟 APEX 13 MEGA SI+ 旗舰海图仪 — ¥29,800. Full 1080p display with dual independent sonar channels and HDMI interface for clean rigging.
  5. Lowrance Lowrance HDS PRO 16 顶级大屏 — ¥36,800. Flagship 16-inch multi-touch display supporting 1.2MHz Active Imaging HD transducers.
  6. Humminbird 蜂鸟 SOLIX 15 CHIRP MEGA SI+ G3 — ¥26,800. Cross Touch 15.4" screen allows tactile button control during rough reservoir chop.
  7. Raymarine 雷松 Axiom 2 Pro 12 RVM 旗舰 — ¥27,500. 6-core processor with HydroTouch water-shedding nano screen; withstands torrential rain.
  8. Simrad Simrad NSS12 evo3S 触控多功能屏 — ¥26,000. SolarMAX IPS display with rotary dial control and full NMEA 2000 engine monitoring.
  9. Furuno 古野 NavNet TZtouch3 12寸 船机 — ¥26,800. Commercial-grade quad-core architecture with 1kW deep CHIRP for large lake stability.
  10. Garmin 佳明 GPSMAP 9019 19寸 4K 奢华驾舱屏 — ¥68,000. 19-inch 4K touchscreen glass helm display with fastest network processing on earth.

← Big Three Comparison: Garmin, Humminbird & Lowrance · Dedicated Clean Power Harness & Interference Elimination →

Fish Finders

Humminbird vs Garmin vs Lowrance model tiers, choosing 7" to 16" screens for console vs bow, Ethernet & NMEA 2000 networking, clean power harnesses, and heavy-duty mounts & turrets.

  1. Big Three Comparison: Garmin, Humminbird & Lowrance
  2. Screen Sizing & Marine Networking: Ethernet & NMEA 2000
  3. Dedicated Clean Power Harness & Interference Elimination
  4. Heavy-Duty Graph Mounts: Console vs Bow Rigging Differences
  5. Transducer Mounts, Stern Saver & Live Sonar Turret Poles

Fish Finders