Capsule Review: Logitech MK850 Performance Wireless Keyboard and Mouse Combo

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We have been reviewing Logitech's multi-device wireless input peripherals for a few years now. The Logitech K480 was launched in 2014, and the Logitech K780 and M720 keyboard and mouse were launched last year. The K780 and M720 Triathlon were separate products. The success of these input peripherals has prompted Logitech to introduce the MK850 Performance combo – a full-length multi-device wireless keyboard along with the wireless M720 Triathlon mouse. The combo is made more powerful by the DuoLink feature – using the keyboard to alter the functionality of the mouse buttons and gestures.

Gallery: The Logitech MK850 Performance Wireless Keyboard and Mouse Combo

The Logitech MK850 Performance combo comes with a single Unifying USB receiver. Logitech also bundles a USB extender for use-cases where the placement of the spare USB port in the PC might result in spotty wireless performance. The combo can be paired with up to three different host devices and easily switch between them. The hosts can be Android, iOS, Mac or Windows devices, and the keys in the keyboard get automatically re-mapped depending on the host OS. Both the mouse and the keyboard have explicit on/off buttons in order to conserve battery life. The keyboard needs 2xAAA batteries, while the mouse needs a single AA battery. Logitech claims battery life of two years for the mouse and three years for the keyboard.

Gallery: The K850 Performance Wireless Keyboard

Gallery: M720 Triathlon Mouse

We had talked about how the K780 keyboard addressed the shortcomings of the K480 keyboard. The keyboard component of the MK850 adds a number of interesting features.

  • Ergonomic contour with a raised profile in the middle, suitable for extended duration usage
  • Full-sized keyboard (101 keys) with explicit number pad and full-sized arrow keys.
  • Cushioned palm rest along the lower side of the keyboard for comfortable extended duration usage
  • Availability of multiple tilt angles for the keyboard (0, 4, or 8 degrees)
  • Better typing experience compared to the K480 and K780
  • Ability to use the Fn key to enhance the combo mouse functionality

Users of the K480 and K780 have appreciated the ability to use the cradle to keep their smartphones in an accessible location while using their computers. The MK850's keyboard, however, doesn't have a cradle for mobile devices.

Hardware-wise, the mouse component of the MK850 is the M720 Triathlon (the sticker on the back of the mouse even has the M720 Triathlon label). The mouse is also the component in the package with a compartment to store the Unifying receiver. As part of the MK850 combo, the differences boil down to the DuoLink feature controlled by the Logitech Options software.

The Logitech Options Software

The Unifying receiver bundled with the package is obviously configured to keep both devices active simultaneously. Installing the Logitech Options software presents both devices along with the battery levels and connection method (Unifying receiver or Bluetooth) at a single glance.

The options available for the mouse (standalone) are an exact replica of what we saw in the M720 Triathlon review. Out of the 8 buttons in the mouse, two (the one behind the scrollwheel that controls the rate at which it moves, and the one that switches the host device to which the mouse is paired) can't be remapped. Everything else can be configured using the Options software.

Gallery: Logitech Options – Mouse Configuration

The left and right buttons can be swapped. The pointer speed can be finely adjusted and the scrollwheel direction can also be swapped. The mouse also has a gesture button below the three raised buttons on the left side. The scrollwheel can be swayed right or left for horizontal scrolling (on mobile devices, that acts similar to swiping right or left on the touchscreen). Along with the device change button, we also have the Forward and Back buttons on the left. The scrollwheel can itself act as a middle mouse button. All of these can be mapped to one of a variety of Windows actions.

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Activating the Options software when the K850 Performance keyboard as well as the M720 Triathlon mouse are connected provides users with the ability to configure the DuoLink features. The option panels associated with the mouse have a 'Default' and a 'Fn' mode, with the latter configuration intended for activation by pressing the Fn key on the keyboard along with the relevant mouse event.

Gallery: Logitech Options – DuoLink and Keyboard Options

The K850 Performance's options include the ability to keep the keyboard always in the Windows layout and the option to use the F1-F12 keys as standard function keys (without using the Fn. key qualifier). The configurable keys include the Home button, F1 through F4, F11, and F12. They can be mapped to a variety of Windows functions / programs such as closing windows, Cortana, Calculator etc.

Concluding Remarks

The MK850 Performance wireless keyboard and mouse combo is an important addition to the set of multi-device I/O peripherals from Logitech. They work as advertised, and there is really not much to complain about, except for the lack of a cradle in the keyboard. As mentioned earlier, the K850 Performance keyboard is a huge improvement over the K480 and K780. Evaluation of keyboards and mice targeted towards day-to-day / casual usage is an inherently subjective exercise. In the table below, we compare the specifications of the MK850 Performance combo with some of the other keyboard / mice combos that we have evaluated with a similar approach before. Some subjective scores have also been provided.

var kblist_devtype = new Array(“Keyboard + Optical Mouse (2-button with scrollwheel / middle button and gesture support)”,”Keyboard + Optical Mouse (2-button with scrollwheel / middle button and gesture support)”,”Keyboard + 2-button Touchpad”,”Keyboard + 2-button Touchpad”,”Keyboard + Touchpad with integrated mechanical click”,”Keyboard + Trackball (with 2 buttons)”,”Keyboard Only”,”Keyboard + 2-button Touchpad”,”Keyboard + 2-button Touchpad”,”Keyboard + Trackball (with 2 buttons and a scrollwheel / middle button)”,”Keyboard + Trackball (with 2 buttons and a scrollwheel / middle button)”,”Keyboard + 2-button Touchpad”,”Keyboard + Trackball (with 2 buttons and a scrollwheel / middle button)”,”Keyboard + 2-button Touchpad”,”Keyboard + 2-button Touchpad”,”Keyboard + Optical Mouse (2-button with scrollwheel / middle button)”); var kblist_dim = new Array(“(Keyboard) 16.93″ x 8.27″ x 0.98”
(Mouse) 2.91″ x 4.53″ x 1.77″”,”(Keyboard) 14.96″ x 6.22″ x (0.87″ to 0.32″)
(Mouse) 2.91″ x 4.53″ x 1.77″”,”14.40″ x 4.90″ x 0.65″”,”16.14″ x 5.71″ x 1.02″”,”16.1″ x 5.7″ x 0.8″”,”12.4″ x 5.7″ x 0.98″”,”11.77″ x 7.68″ x 0.79″”,”11.75″ x 8.25″ x 0.8″”,”13.94″ x 5.35″ x 0.94″”,”14.125″ x 6.5″ x 1.5″”,”13.6″ x 6.3″ x 1.8″”,”12.125″ x 8.75″ x 0.625″”,”15″ x 6.1″ x 1.6″”,”18″ x 6.5″ x 0.9″”,”11.75″ x 8.25″ x 0.8″”,”(Keyboard) 14″ x 4.3″ x 0.2″
(Mouse) 3″ x 4.6″ x 1.5″”); var kblist_wt = new Array(“(Keyboard) 1.62 lbs / 733 g
(Mouse) 0.3125 lbs / 135 g”,”(Keyboard) 1.93 lbs / 875 g
(Mouse) 0.3125 lbs / 135 g”,”1.09 lbs / 495 g”,”1.12 lbs / 507 g”,”1.73 lbs / 783 g”,”0.932 lbs / 423 g”,”1.81 lbs / 820 g”,”1.25 lbs / 550 g”,”0.79 lbs / 360 g”,”1.26 lbs / 572 g”,”1.20 lbs / 544 g”,”1.4 lbs / 646 g”,”1.5 lbs / 680 g”,”1.875 lbs / 851 g”,”1.25 lbs / 550 g”,”(Keyboard) 0.77 lbs / 350 g
(Mouse) 0.18 lbs / 82 g”); var kblist_power = new Array(“(Keyboard) 2x AAA
(Mouse) 1x AA”,”(Keyboard) 2x AAA
(Mouse) 1x AA”,”Internal rechargeable battery”,”2x AA”,”4x AA”,”2x AAA”,”2x AAA”,”2x AAA”,”2x AA”,”2x AA”,”2x AA”,”2x AAA”,”2x AAA”,”2x AAA”,”2x AAA”,”(Keyboard) 2x AAA
(Mouse) 2x AAA”); var kblist_comm = new Array(“2.4 GHz RF and Bluetooth 4.0″,”2.4 GHz RF and Bluetooth 4.0″,”2.4 GHz RF”,”2.4 GHz RF”,”2.4 GHz RF”,”2.4 GHz RF”,”Bluetooth”,”Bluetooth”,”2.4 GHz RF”,”2.4 GHz RF”,”2.4 GHz RF”,”2.4 GHz RF”,”2.4 GHz RF”,”2.4 GHz RF”,”2.4 GHz RF”,”2.4 GHz RF”); var kblist_psaver = new Array(“Explicit On/Off Switches on both Keyboard and Mouse”,”Explicit On/Off Switches on both Keyboard and Mouse”,”Explicit On/Off Switch”,”Explicit On/Off Switch”,”Explicit On/Off Switch”,”Explicit On/Off Switch”,”Explicit On/Off Switch”,”Explicit On/Off Switch + Auto Sleep”,”Explicit On/Off Switch”,”Explicit On/Off Switch”,”Auto Sleep”,”Auto Sleep”,”Explicit On/Off Switch”,”Explicit On/Off Switch + Auto Sleep”,”Explicit On/Off Switch + Auto Sleep”,”Explicit On/Off Switches on both Keyboard and Mouse”); var kblist_keyscount = new Array(“101 (with multiplexed Internet and multimedia hot keys) + 3 (for device switching)”,”96 (with multiplexed Internet and multimedia hot keys)”,”79 + 3 volume control keys”,”85 (with 11 multiplexed multimedia hotkeys)”,”78 (with 11 multiplexed multimedia hotkeys)”,”87″,”79 (with multiplexed multimedia and mobile-specific keys)”,”87″,”79 + 4 media hot keys”,”78 + 8 media hot keys”,”81 + 14 media hot keys”,”88 + 8 media / Internet hot keys”,”87 + 7 Internet hot keys + 7 multimedia hot keys”,”104 (with multiplexed multimedia keys)”,”87″,”103 (with multiplexed Internet and multimedia hot keys)”); var kblist_tpaddim = new Array(“N/A”,”N/A”,”3.7″”,”3.66″”,”5.9″”,”N/A”,”N/A”,”3.5″”,”3.5″”,”N/A”,”N/A”,”3″”,”N/A”,”2.7″”,”3.5″”,”N/A”); var kblist_usbstor = new Array(“Yes on Mouse”,”Yes on both Keyboard and Mouse”,”No”,”No”,”No”,”No”,”N/A”,”Yes”,”Yes”,”No”,”No”,”Yes”,”Yes”,”Yes”,”Yes”,”No”); var kblist_bklight = new Array(“No”,”No”,”Yes”,”No”,”No”,”No”,”No”,”No”,”No”,”No”,”No”,”No”,”No”,”No”,”No”,”No”); var kblist_keylayoutscore = new Array(“9.5/10″,”8/10″,”8/10″,”8/10″,”8/10″,”8/10″,”8/10″,”7/10″,”8/10″,”6/10″,”5/10″,”6/10″,”7/10″,”9/10″,”7/10″,”7/10”); var kblist_ergonomicscore = new Array(“(Keyboard) 9.5/10
(Mouse)10/10″,”(Keyboard) 7/10
(Mouse)10/10″,”8/10″,”7/10″,”8/10″,”7/10″,”8/10″,”8/10″,”6/10″,”7/10″,”7/10″,”7/10″,”7/10″,”8/10″,”8/10″,”7/10″); var kblist_bqualityscore = new Array(“(Keyboard) 9/10
(Mouse) 9/10″,”(Keyboard) 9/10
(Mouse) 9/10″,”9/10″,”7/10″,”9/10″,”8/10″,”9/10″,”8/10″,”7/10″,”9/10″,”7/10″,”7/10″,”8/10″,”8/10″,”8/10″,”(Keyboard) 8/10
(Mouse) 6/10″); var kblist_price = new Array(“$99.99”,”(Keyboard) $79.99
(Mouse) $69.99″,”$99.99″,”$24.99″,”$99.99″,”$14.99″,”$49.99″,”$89.99″,”$39.99″,”$49.95″,”$59.99″,”$69.99″,”$69.99″,”$79.99″,”$89.99″,”$39.99″); var kblist_warranty = new Array(“1 year”,”1 year”,”1 year”,”1 year”,”3 years”,”1 year”,”1 year”,”1 year”,”3 years”,”3 years”,”3 years”,”3 years”,”1 year”,”1 year”,”1 year”,”1 year”);

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Keyboard Bench
AspectLogitech MK850 PerformanceLogitech K780 and M720 TriathlonLogitech K830Perixx PERIBOARD-716Logitech TK820Perixx PERIBOARD-706 PLUSLogitech K480Adesso WKB-4000BBLogitech K400IOGEAR GKM561RSIIG JK-WR0412-S1SIIG JK-WR0312-S1Adesso WKB-3000UAdesso WKB-4400UBAdesso WKB-4000UBAdesso WKB-1200Logitech MK850 Performance
Device TypeKeyboard + Optical Mouse (2-button with scrollwheel / middle button and gesture support)Keyboard + Optical Mouse (2-button with scrollwheel / middle button and gesture support)
Dimensions(Keyboard) 16.93″ x 8.27″ x 0.98″
(Mouse) 2.91″ x 4.53″ x 1.77″
(Keyboard) 14.96″ x 6.22″ x (0.87″ to 0.32″)
(Mouse) 2.91″ x 4.53″ x 1.77″
Weight(Keyboard) 1.62 lbs / 733 g
(Mouse) 0.3125 lbs / 135 g
(Keyboard) 1.93 lbs / 875 g
(Mouse) 0.3125 lbs / 135 g
Power Source(Keyboard) 2x AAA
(Mouse) 1x AA
(Keyboard) 2x AAA
(Mouse) 1x AA
Communication2.4 GHz RF and Bluetooth 4.02.4 GHz RF and Bluetooth 4.0
Power SaverExplicit On/Off Switches on both Keyboard and MouseExplicit On/Off Switches on both Keyboard and Mouse
Keys Count101 (with multiplexed Internet and multimedia hot keys) + 3 (for device switching)96 (with multiplexed Internet and multimedia hot keys)
Touchpad Dimensions (Diagonal)N/AN/A
USB Receiver Storage CompartmentYes on MouseYes on both Keyboard and Mouse
BacklightNoNo
Keyboard Layout9.5/108/10
Ergonomics(Keyboard) 9.5/10
(Mouse)10/10
(Keyboard) 7/10
(Mouse)10/10
Build Quality(Keyboard) 9/10
(Mouse) 9/10
(Keyboard) 9/10
(Mouse) 9/10
MSRP (USD)$99.99(Keyboard) $79.99
(Mouse) $69.99
Warranty1 year1 year

While it is difficult to find scope for improvement in the M720 Triathlon, the K850 Performance keyboard's appeal can be enhanced by the addition of a cradle to the design, as well as making the palm rest detachable. As a combo, the whole is more than the sum of parts, thanks to the DuoLink features.

The MK850 Performance combo is priced at $99.99. Given that the M720 Triathlon mouse had a MSRP of $70 at launch, the pricing of the MK850 Performance combo seems pretty reasonable. Logitech has primarily focused on the niche mobile device input peripheral market with their multi-device Bluetooth / wireless models. The design of the K850 Performance keyboard makes it suitable for heavy office use. This will help Logitech address a wider market with the MK850 Performance wireless keyboard and mouse combo.

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