On Sunday, October 19, 2014 8:20:10 AM UTC-7, Duster wrote:
On Sunday, October 19, 2014 9:34:44 AM UTC-5, wrote:

While not about the iPhone directly, I would still suggest checking out the Kobo e-reader option. The display is black and white but it is always readable in flight, no matter what the sun direction is. You can put the "system" together for under $100. Kobo Mini's are out of production but still around for $60, A GPS chip is around $30, and the wiring is up to you or your local computer repair shop. Runs XCSoar or Top Hat.







For me readability in flight is a top priority, and you can always read a book on it.



http://www.50k-or-bust.com/Kobo%20XC...Notes%2001.pdf







Gary



Below is a partial list of devices and their measured brightness of at least 400 "nits" obtained from "phonearena.com" and passed on by a kind XCSoar folk. -Michael



BlackBerry Q5 912

BlackBerry Passport 894

Nokia Lumia 720 740

BlackBerry Z10 739

Sony Xperia Z3 713

Nokia Lumia 1520 707

Samsung Galaxy NotePRO 12.2 627

Nokia Lumia 620 623

Kyocera Brigadier 610

Apple iPhone 6 606

Google Nexus 7 (2013) 591

Apple iPhone 5s 587

HTC Desire 700 577

Apple iPhone 6 Plus 574

Sony Xperia T3 569

Amazon Fire Phone 566

Meizu MX4 535

Apple iPhone 5 535

HTC One (E8) 524

Nokia Lumia 1320 521

Sony Xperia Z1 Compact 515

HTC One (M8) for Windows 514

HTC Butterfly 2 510

Sony Xperia T2 Ultra 508

HTC Desire 601 503

Sony Xperia Z1 495

Alcatel OneTouch Hero 495

Samsung Galaxy S5 Active 491

HTC One (M8) 490

Sony Xperia SP 490

HTC One mini 2 489

Alcatel OneTouch Idol Alpha 486

Google Nexus 5 485

Huawei Ascend Mate7 484

Sony Xperia C 480

HTC One mini 480

HTC One max 469

Samsung Galaxy Note 4 468

Huawei Ascend P7 463

Xiaomi Mi-3 463

Sony Xperia M2 461

HTC One 460

Sony Xperia Z2 458

HTC Desire 500 458

Samsung Galaxy Grand 2 458

Huawei Ascend Mate 2 4G 457

OPPO Find 7a 455

LG G3 455

OPPO R819 453

Apple iPad mini 2 450

OnePlus One 447

Alcatel OneTouch Idol X+ 447

Samsung Galaxy S5 442

ZTE ZMAX 441

HTC Desire 300 441

Nokia Lumia 635 440

Sony Xperia Z 440

Sony Xperia M 438

LG G2 438

Sony Xperia Z3 Compact 436

Alcatel OneTouch Idol X 431

Samsung GALAXY Note 10.1 (2014 Edition) 430

Samsung Galaxy Mega 5.8 430

Motorola Moto G 429

Samsung Galaxy S4 Active 427

Google Nexus 4 427

Apple iPad Air 426

GIGABYTE GSmart Guru 426

GIGABYTE GSmart Roma R2 425

Sony Xperia Z Ultra 425

OPPO N1 423

Samsung Galaxy Alpha 422

LG G Pro 2 420

Samsung Galaxy Tab S 8.4 419

HTC Desire 501 418

Sony Xperia Z2 Tablet 417

Acer Liquid S1 411

Samsung Galaxy Tab Pro 8.4 410

HTC Desire 600 410

Sony Xperia L 410

Samsung Galaxy Tab 3 8-inch 408

Samsung Galaxy Trend Plus 405

Samsung Galaxy Tab 3 10.1-inch 402

HTC One X+ 400

Unfortunately brightness has little to do with sunlight readability of a color screen. The contrast ratio, lack of a touch overlay and the specialized coatings are the features that make a display sunlight readable.

Brightness of 1500 + nits is required to over come poor sunlight readable design and even then it appears washed out compared to a properly designed display.

Richard
www.craggyaero.com