Category Archives: Electronics

Garmin Forerunner 225 vs 230 vs 235

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Garmin Forerunner 225 vs 230 vs 235 GPS running watches comparison chart.

Garmin GPS Running Watch
Garmin Forerunner 225Garmin Forerunner 230Garmin Forerunner 235
Models
Garmin Forerunner 225
Garmin Forerunner 225
Garmin Forerunner 230
Forerunner 230
Garmin Forerunner 235
Forerunner 235
View the model availability and current price from Amazon.comGarmin Forerunner 225 GPS WatchGarmin Forerunner 230Garmin Forerunner 235
Introduction DateGarmin introduced the Garmin Forerunner 225 model on May 12, 2015.Garmin Forerunner 230 was announced by Garmin on October 21, 2015Garmin Forerunner 235 was announced by Garmin on October 21, 2015
What's Difference
Physical & Performance
Physical dimensions11.3” x 1.9” x 0.6” (287 mm x 48 mm x 16 mm)1.77" x 1.77" x 0.46" (45 x 45 x 11.7 mm)1.77" x 1.77" x 0.46" (45 x 45 x 11.7 mm)
Display size, WxH1.0" (25.4 mm) diameter1.23" (31.1 mm) diameter1.23" (31.1 mm) diameter
Display resolution, WxH180 x 180 pixels215 x 180 pixels215 x 180 pixels
Weight1.9 oz. (54 g)1.4 oz (41 g)1.5 oz (42 g)
Battery lifeUp to 4 weeks in watch mode; up to 10 hours in GPS mode with optical HRM16 Hours training, 5 weeks watch + AT + Notifications11 hours training, 9 days watch + activity tracking + notifications + heart rate
GLONASSNoYesYes
Smart notifications (displays email, text and other alerts when paired with your compatible phone)NoYesYes
Music controlNoYesYes
Find my phoneNoYesYes
VIRB controlNoYesYes
Running Features
Virtual Pacer (compares current pace to target)NoYesYes
V02 max estimateNoYesYes
Recovery advisorNoYesYes
Race predictorNoYesYes
Cycling Features
Bike speed/cadence sensorNoYes (optional)Yes (optional)
Performance Features
Heart rate monitorYes (wrist-based - using Mio Heart Rate Technology)Yes (Some versions)Yes (wrist-based – using Garmin Elevate™ heart rate technology)
Virtual Partner (train against a digital person)NoYesYes
Virtual Racer (compete against other activities)NoYesYes
Time/distance alert (triggers alarm when you reach goal)NoYesYes
Training Effect (measures impact of an activity on your aerobic fitness)NoYesYes
Additional
AdditionalWrist-based heart rate: yes (wrist-based - using Mio Heart Rate Technology)
Connect IQ™ app support: YesConnect IQ™ app support: Yes

Wrist-based heart rate: Yes (wrist-based – using Garmin Elevate™ heart rate technology)
What's Common
Physical & Performance
Color displayYesYesYes
BatteryRechargeable lithium-ionRechargeable lithium-ionRechargeable lithium-ion
Water rating5 ATM5 ATM5 ATM
GPS-enabledYesYesYes
High-sensitivity receiverYesYesYes
Vibration alertYesYesYes
Watch functionsIncludes date and alarmIncludes date and alarmIncludes date and alarm
Maps & Memory
History200 hours of activity data200 hours of activity data200 hours of activity data
Running Features
Accelerometer (calculates distance for indoor workouts, without need for a foot pod)YesYesYes
Personal recordsYesYesYes
Performance Features
Foot podYes (optional)Yes (optional)Yes (optional)
Auto Pause (pauses and resumes timer based on speed)YesYesYes
Auto Lap (automatically starts a new lap)YesYesYes
Auto Scroll (cycles through data pages during workout)YesYesYes
Advanced workouts (create custom, goal-oriented workouts)YesYesYes
Pace alert (triggers alarm if you vary from preset pace)YesYesYes
Interval training (set up exercise and rest intervals)YesYesYes
Heart rate-based calorie computationYesYesYes
Calculates calories burnedYesYesYes
Customizable screen(s)YesYesYes
Shock ResistantYesYesYes
Activity Tracking Features
Step counterYesYesYes
Auto goal (learns your activity level and assigns a daily step goal)YesYesYes
Move bar (displays on device after a period of inactivity; walk for a couple of minutes to reset it)YesYesYes
Sleep monitoring (monitors total sleep and periods of movement or restful sleep)YesYesYes
Garmin Connect?
Garmin Connectル compatible (online community where you analyze, categorize and share data)YesYesYes
Automatic sync (automatically transfers data to your computer)YesYesYes
Official Specs and Features
Learn more from the manufacturer site.Read more about Garmin Forerunner 225 at garmin.comRead more about Garmin Forerunner 230 at garmin.comRead more about Garmin Forerunner 235 at garmin.com
Amazon Customer Reviews
Read all the reviews inclusive of the most helpful favorable review and the most helpful critical review (if applicable)
Click here to read Garmin Forerunner 225 reviews from Amazon.com customersno review yetno review yet
Check Price
View the model availability and current priceGarmin Forerunner 225 GPS WatchGarmin Forerunner 230Garmin Forerunner 235

Note: This comparison by comchoose.com is a basic guide based on Garmin published specifications and features at their official website. This comparison might not totally complete and there might be other similarities and differences which are not covered here.

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Optoma ML550 vs ML750

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A Comparison chart between Optoma ML550 and ML750 Palm-Sized LED Projector

Palm-Sized Optoma LED Projector
Optoma ML550Optoma ML750
ModelsOptoma ML550

Optoma ML550
Optoma ML750

Optoma ML750
Click on the link to view the latest price from AmazonOptoma ML550 WXGA 500 Lumen 3D Ready Portable DLP LED Projector with HDMI Optoma ML750 WXGA 700 Lumen 3D Ready Portable DLP LED Projector with HDMI
Brightness500 LED Lumens700 LED Lumens
Native ResolutionWXGA (1280 x 800)WXGA (1280 x 800)
Contrast Ratio10,000:1 (full on/full off)10,000:1 (full on/full off)
Lamp Life and Type20,000+ hours, LED20,000+ hours, LED
Projection Distance1.8'-10.6' (0.55-3.23 m)1.8'-10.6' (0.55-3.23 m)
Image Size (Diagonal)17"-100" (5.2-30.5 m)17"-100" (5.2-30.5 m)
Aspect Ratio16:10 Native; 16:9 and 4:3 compatible16:10 Native, 16:9 and 4:3 compatible
Displayable Colors16.7 Million16.7 Million
Display TechnologySingle 0.45" DMD DLP Technology by Texas InstrumentsSingle 0.45" DMD DLP Technology by Texas Instruments
I/O Connection Ports24-pin Universal Port (VGA), HDMI, Audio-Out, micro-SD, USB-A24-pin Universal Port (VGA), HDMI, Audio-Out, micro-SD, USB-A
3D Compatibility120Hz frame sequential 3D for resolutions up to XGA, 60Hz field sequential 3D for resolutions up to 480i. Not compatible with 3DXL.120Hz frame sequential 3D for resolutions up to XGA, 60Hz field sequential 3D for resolutions up to 480i. Not compatible with 3DXL.
Official Specs and Features
Learn more from the manufacturer site.Read more about Optoma ML550 at Optoma USARead more about Optoma ML750 at Optoma USA
Amazon Customer Reviews
Read all the reviews inclusive of the most helpful favorable review and the most helpful critical review (if applicable)
Click here to read the reviews on Optoma ML550Click here to read the reviews on Optoma ML750
Check Price
View the latest price from AmazonCheck out the Optoma ML550 WXGA 500 Lumen 3D Ready Portable DLP LED Projector with HDMI Check out the Optoma ML750 WXGA 700 Lumen 3D Ready Portable DLP LED Projector with HDMI

Disclaimer: Information provided is believed correct and true to the best of our ability, however, ComChoose  is not responsible for typographical errors or incorrect data. The data are based from Amazon.com products page. Please visit the official manufacturer product page for more details on the specifications and features.

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Yamaha RX-V677 vs RX-V775WA

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A Comparison chart between Yamaha RX-V677 and RX-V775WA AV Receivers

Note: This comparison by comchoose.com is a basic guide based on published specifications and features at Yamaha USA official website. And by no means that this comparison is definitive. There might be other characteristic  which are not covered here.

Yamaha AV Receivers
Yamaha RX-V677Yamaha RX-V775WA
ModelsYamaha RX-V577
Yamaha RX-V677
Yamaha RX-V775WA
Yamaha RX-V775WA
View the model availability and current price from AmazonYamaha RX-V677 7.2-channel Wi-Fi Network AV ReceiverYamaha RX-V775WA 7.2 Channel Network AV Receiver with AirPlay and WiFi Adapter
Specifications and Features
Amplifier Section
Product NameRX-V677RX-V775WA
Channel7.27.2
Rated Output Power (1kHz, 2ch driven)105 W (8 ohms, 0.9% THD)110 W (8 ohms, 0.9% THD)
Rated Output Power (20Hz-20kHz, 2ch driven)90 W (8 ohms, 0.09% THD)95 W (8 ohms, 0.09% THD)
Dynamic Power per Channel (8/6/4/2 ohms)125 / 165 / 190 / 235 W140/180/210/250 W
Surround Sound Processing
Product NameRX-V677RX-V775WA
CINEMA DSPYes (3D)Yes (3D)
DSP Programs1717
Virtual Presence SpeakerYesYes
Dialog Level AdjustmentYesYes
SILENT CINEMA / Virtual CINEMA DSPYes
SILENT CINEMAYes
Dialogue LiftYes (no presence speakers required)Yes (no presence speakers required)
Dolby TrueHDYesYes
Virtual CINEMA FRONTYes
Dolby Digital PlusYesYes
Extra BassYes
DTS-HD Master AudioYesYes
Dolby Pro Logic IIxYesYes
Audio Features
Product NameRX-V677RX-V775WA
Compressed Music EnhancerYesYes
YPAO sound optimizationYes (R.S.C.)
Adaptive DRC (Dynamic Range Control)YesYes
Pure DirectYes (with video on mode)Yes (with video on mode)
Initial Volume & Maximum Volume SettingYesYes
Audio DelayYes (0-500 ms)Yes (0-500 ms)
192kHz/24-bit DACs for all channelsYes (Burr-Brown)Yes (Burr-Brown)
Bi-amp capabilityYesYes
YPAO multi-point measurementYes (R.S.C.)
YPAO VolumeYes
Video Features
Product NameRX-V677RX-V775WA
4K Ultra HD pass-throughYes
HDMI 3D pass-throughYesYes
HDMI Audio Return ChannelYesYes
Deep Color/ x.v.Color/ 24Hz Refresh Rate / Auto Lip-SyncYesYes
4K Ultra HD Pass-through and upscalingYes (latest HDMI version for 4K Ultra HD 50 / 60p)Yes
HDMI upscalingYes (analog to HDMI / HDMI to HDMI)Yes (analog to HDMI / HDMI to HDMI)
Connectivity
Product NameRX-V677RX-V775WA
MHL SupportYesYes
AirPlayYesYes
DC OutYesYes
Wi-FiYes (with Wireless Direct)
Extensive Connection
Product NameRX-V677RX-V775WA
HDMI Input/ Output6 (1 front) / 16 (front 1) / 2 (simultaneous)
HDMI CECYes (SCENE, device control)Yes (SCENE, device control)
USB InputiPod / iPhone / iPad, USB memory, portable audio playeriPod/ iPhone/ iPad, USB memory, portable audio player
Front AV InputHDMI (MHL support) / USB / CompositeHDMI (MHL support)/USB/Composite
Network PortYesWith access to Pandora®/Rhapsody®/ Internet Radio/vTuner Internet radio service and DLNA 1.5 compatible
Digital Audio Input/ Output: Optical2 / 02 / 0
Digital Audio Input/ Output: Coaxial2 / 02 / 0
Analog Audio Input/ Output5 / 14 / 1
Component Video Input/ Output2 / 12 / 1
Composite Video Input/ Output5 (1 front) / 25 (front 1) / 1
PreoutSubwoofer (2 x mono)7.2 ch
Headphone Output11
Tuner Section
Product NameRX-V677RX-V775WA
FM/AM TunerYesYes
User Interface
Product NameRX-V677RX-V775WA
On-screen displayGraphical user interfaceGraphical user interface
SCENESCENE (4 sets)SCENE (4 sets)
App ControlYes (iPhone / iPad / Android™ phone / tablet)Yes (iPhone/ iPad/Android phone/ tablet)
Remote Control UnitYesYes (preset)
Web Browser ControlYesYes
Zone Control
Product NameRX-V677RX-V775WA
Powered ZoneZone 2Zone 2
Zone 2 Audio OutputLine outputLine output
+12V Trigger Output11
Remote (IR) Input/Output1 / 11 / 1
Party ModeYes
General
Product NameRX-V677RX-V775WA
Standby Power Consumption (IR only)≤0.15 W≤0.1 W
Auto Power StandbyYesYes
ECO modeYesYes
Dimensions (W x H x D)17-1/8" x 6-3/4" x 14-3/8" (with antenna: 17-1/8" x 9-1/4" x 14-7/8")17-1/8" x 6-3/4" x 14-1/2"
Weight22.1 lbs.23.2 lbs
Official Specs and Features
Learn more from the manufacturer site.Read more about Yamaha RX-V677 from Yamaha USARead more about Yamaha RX-V775WA from Yamaha USA
Amazon Customer Reviews
Read all the reviews inclusive of the most helpful favorable review and the most helpful critical review (if available)Click here to read the reviews on Yamaha RX-V677Click here to read the reviews on Yamaha RX-V775WA
Check Price
View the model availability and current price from AmazonClick on this link Yamaha RX-V677 7.2-channel Wi-Fi Network AV ReceiverClick on this link Yamaha RX-V775WA 7.2 Channel Network AV Receiver with AirPlay and WiFi Adapter

Disclaimer: Information provided is believed correct and true to the best of our ability, however, ComChoose  is not responsible for typographical errors or incorrect data. Please visit the official manufacturer product page for more details on the specifications and features.

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