Global Eink Phone Market Growth 2025-2031

September 2025 | 79 pages | ID: G66CD0337E04EN
LP Information

Abstracts

The global Eink Phone market size is predicted to grow from US$ 107 million in 2025 to US$ 138 million in 2031; it is expected to grow at a CAGR of 4.4% from 2025 to 2031.

An E-ink phone is a smartphone that utilizes E-Ink display technology. Unlike traditional LCD or OLED screens, an E-Ink screen forms text and images through tiny electronic particles, resulting in a display similar to paper, offering a more comfortable reading experience and reducing eye strain. E-ink phones are known for their low power consumption, significantly extending battery life, making them ideal for extended use. While E-Ink screens have limitations in color reproduction and refresh rates, they offer high contrast and clarity, making them particularly suitable for reading text, browsing the web, and checking emails—especially favored by users who enjoy reading and seek battery efficiency.

United States market for Eink Phone is estimated to increase from US$ million in 2024 to US$ million by 2031, at a CAGR of % from 2025 through 2031.

China market for Eink Phone is estimated to increase from US$ million in 2024 to US$ million by 2031, at a CAGR of % from 2025 through 2031.

Europe market for Eink Phone is estimated to increase from US$ million in 2024 to US$ million by 2031, at a CAGR of % from 2025 through 2031.

Global key Eink Phone players cover Hisense, BOOX, Bigme, etc. In terms of revenue, the global two largest companies occupied for a share nearly % in 2024.

LP Information, Inc. (LPI) ' newest research report, the “Eink Phone Industry Forecast” looks at past sales and reviews total world Eink Phone sales in 2024, providing a comprehensive analysis by region and market sector of projected Eink Phone sales for 2025 through 2031. With Eink Phone sales broken down by region, market sector and sub-sector, this report provides a detailed analysis in US$ millions of the world Eink Phone industry.

This Insight Report provides a comprehensive analysis of the global Eink Phone landscape and highlights key trends related to product segmentation, company formation, revenue, and market share, latest development, and M&A activity. This report also analyzes the strategies of leading global companies with a focus on Eink Phone portfolios and capabilities, market entry strategies, market positions, and geographic footprints, to better understand these firms’ unique position in an accelerating global Eink Phone market.

This Insight Report evaluates the key market trends, drivers, and affecting factors shaping the global outlook for Eink Phone and breaks down the forecast by Type, by Application, geography, and market size to highlight emerging pockets of opportunity. With a transparent methodology based on hundreds of bottom-up qualitative and quantitative market inputs, this study forecast offers a highly nuanced view of the current state and future trajectory in the global Eink Phone.

This report presents a comprehensive overview, market shares, and growth opportunities of Eink Phone market by product type, application, key manufacturers and key regions and countries.

Segmentation by Type:

• Black and white E Ink Screen
• Color E Ink Screen

Segmentation by Application:

• Youth (15-24 Years)
• Adults (25-54 Years)
• Seniors (55 Years and Over)

This report also splits the market by region:

• Americas
• United States
• Canada
• Mexico
• Brazil
• APAC
• China
• Japan
• Korea
• Southeast Asia
• India
• Australia
• Europe
• Germany
• France
• UK
• Italy
• Russia
• Middle East & Africa
• Egypt
• South Africa
• Israel
• Turkey
• GCC Countries

The below companies that are profiled have been selected based on inputs gathered from primary experts and analysing the company's coverage, product portfolio, its market penetration.

• Hisense
• BOOX
• Bigme

Key Questions Addressed in this Report
What is the 10-year outlook for the global Eink Phone market?
What factors are driving Eink Phone market growth, globally and by region?
Which technologies are poised for the fastest growth by market and region?
How do Eink Phone market opportunities vary by end market size?
How does Eink Phone break out by Type, by Application?

Contents

1 SCOPE OF THE REPORT

1.1 Market Introduction
1.2 Years Considered
1.3 Research Objectives
1.4 Market Research Methodology
1.5 Research Process and Data Source
1.6 Economic Indicators
1.7 Currency Considered
1.8 Market Estimation Caveats

2 EXECUTIVE SUMMARY

2.1 World Market Overview
  2.1.1 Global Eink Phone Annual Sales 2020-2031
  2.1.2 World Current & Future Analysis for Eink Phone by Geographic Region, 2020, 2024 & 2031
  2.1.3 World Current & Future Analysis for Eink Phone by Country/Region, 2020, 2024 & 2031
2.2 Eink Phone Segment by Type
  2.2.1 Black and white E Ink Screen
  2.2.2 Color E Ink Screen
2.3 Eink Phone Sales by Type
  2.3.1 Global Eink Phone Sales Market Share by Type (2020-2025)
  2.3.2 Global Eink Phone Revenue and Market Share by Type (2020-2025)
  2.3.3 Global Eink Phone Sale Price by Type (2020-2025)
2.4 Eink Phone Segment by Application
  2.4.1 Youth (15-24 Years)
  2.4.2 Adults (25-54 Years)
  2.4.3 Seniors (55 Years and Over)
2.5 Eink Phone Sales by Application
  2.5.1 Global Eink Phone Sale Market Share by Application (2020-2025)
  2.5.2 Global Eink Phone Revenue and Market Share by Application (2020-2025)
  2.5.3 Global Eink Phone Sale Price by Application (2020-2025)

3 GLOBAL BY COMPANY

3.1 Global Eink Phone Breakdown Data by Company
  3.1.1 Global Eink Phone Annual Sales by Company (2020-2025)
  3.1.2 Global Eink Phone Sales Market Share by Company (2020-2025)
3.2 Global Eink Phone Annual Revenue by Company (2020-2025)
  3.2.1 Global Eink Phone Revenue by Company (2020-2025)
  3.2.2 Global Eink Phone Revenue Market Share by Company (2020-2025)
3.3 Global Eink Phone Sale Price by Company
3.4 Key Manufacturers Eink Phone Producing Area Distribution, Sales Area, Product Type
  3.4.1 Key Manufacturers Eink Phone Product Location Distribution
  3.4.2 Players Eink Phone Products Offered
3.5 Market Concentration Rate Analysis
  3.5.1 Competition Landscape Analysis
  3.5.2 Concentration Ratio (CR3, CR5 and CR10) & (2023-2025)
3.6 New Products and Potential Entrants
3.7 Market M&A Activity & Strategy

4 WORLD HISTORIC REVIEW FOR EINK PHONE BY GEOGRAPHIC REGION

4.1 World Historic Eink Phone Market Size by Geographic Region (2020-2025)
  4.1.1 Global Eink Phone Annual Sales by Geographic Region (2020-2025)
  4.1.2 Global Eink Phone Annual Revenue by Geographic Region (2020-2025)
4.2 World Historic Eink Phone Market Size by Country/Region (2020-2025)
  4.2.1 Global Eink Phone Annual Sales by Country/Region (2020-2025)
  4.2.2 Global Eink Phone Annual Revenue by Country/Region (2020-2025)
4.3 Americas Eink Phone Sales Growth
4.4 APAC Eink Phone Sales Growth
4.5 Europe Eink Phone Sales Growth
4.6 Middle East & Africa Eink Phone Sales Growth

5 AMERICAS

5.1 Americas Eink Phone Sales by Country
  5.1.1 Americas Eink Phone Sales by Country (2020-2025)
  5.1.2 Americas Eink Phone Revenue by Country (2020-2025)
5.2 Americas Eink Phone Sales by Type (2020-2025)
5.3 Americas Eink Phone Sales by Application (2020-2025)
5.4 United States
5.5 Canada
5.6 Mexico
5.7 Brazil

6 APAC

6.1 APAC Eink Phone Sales by Region
  6.1.1 APAC Eink Phone Sales by Region (2020-2025)
  6.1.2 APAC Eink Phone Revenue by Region (2020-2025)
6.2 APAC Eink Phone Sales by Type (2020-2025)
6.3 APAC Eink Phone Sales by Application (2020-2025)
6.4 China
6.5 Japan
6.6 South Korea
6.7 Southeast Asia
6.8 India
6.9 Australia
6.10 China Taiwan

7 EUROPE

7.1 Europe Eink Phone by Country
  7.1.1 Europe Eink Phone Sales by Country (2020-2025)
  7.1.2 Europe Eink Phone Revenue by Country (2020-2025)
7.2 Europe Eink Phone Sales by Type (2020-2025)
7.3 Europe Eink Phone Sales by Application (2020-2025)
7.4 Germany
7.5 France
7.6 UK
7.7 Italy
7.8 Russia

8 MIDDLE EAST & AFRICA

8.1 Middle East & Africa Eink Phone by Country
  8.1.1 Middle East & Africa Eink Phone Sales by Country (2020-2025)
  8.1.2 Middle East & Africa Eink Phone Revenue by Country (2020-2025)
8.2 Middle East & Africa Eink Phone Sales by Type (2020-2025)
8.3 Middle East & Africa Eink Phone Sales by Application (2020-2025)
8.4 Egypt
8.5 South Africa
8.6 Israel
8.7 Turkey
8.8 GCC Countries

9 MARKET DRIVERS, CHALLENGES AND TRENDS

9.1 Market Drivers & Growth Opportunities
9.2 Market Challenges & Risks
9.3 Industry Trends

10 MANUFACTURING COST STRUCTURE ANALYSIS

10.1 Raw Material and Suppliers
10.2 Manufacturing Cost Structure Analysis of Eink Phone
10.3 Manufacturing Process Analysis of Eink Phone
10.4 Industry Chain Structure of Eink Phone

11 MARKETING, DISTRIBUTORS AND CUSTOMER

11.1 Sales Channel
  11.1.1 Direct Channels
  11.1.2 Indirect Channels
11.2 Eink Phone Distributors
11.3 Eink Phone Customer

12 WORLD FORECAST REVIEW FOR EINK PHONE BY GEOGRAPHIC REGION

12.1 Global Eink Phone Market Size Forecast by Region
  12.1.1 Global Eink Phone Forecast by Region (2026-2031)
  12.1.2 Global Eink Phone Annual Revenue Forecast by Region (2026-2031)
12.2 Americas Forecast by Country (2026-2031)
12.3 APAC Forecast by Region (2026-2031)
12.4 Europe Forecast by Country (2026-2031)
12.5 Middle East & Africa Forecast by Country (2026-2031)
12.6 Global Eink Phone Forecast by Type (2026-2031)
12.7 Global Eink Phone Forecast by Application (2026-2031)

13 KEY PLAYERS ANALYSIS

13.1 Hisense
  13.1.1 Hisense Company Information
  13.1.2 Hisense Eink Phone Product Portfolios and Specifications
  13.1.3 Hisense Eink Phone Sales, Revenue, Price and Gross Margin (2020-2025)
  13.1.4 Hisense Main Business Overview
  13.1.5 Hisense Latest Developments
13.2 BOOX
  13.2.1 BOOX Company Information
  13.2.2 BOOX Eink Phone Product Portfolios and Specifications
  13.2.3 BOOX Eink Phone Sales, Revenue, Price and Gross Margin (2020-2025)
  13.2.4 BOOX Main Business Overview
  13.2.5 BOOX Latest Developments
13.3 Bigme
  13.3.1 Bigme Company Information
  13.3.2 Bigme Eink Phone Product Portfolios and Specifications
  13.3.3 Bigme Eink Phone Sales, Revenue, Price and Gross Margin (2020-2025)
  13.3.4 Bigme Main Business Overview
  13.3.5 Bigme Latest Developments

14 RESEARCH FINDINGS AND CONCLUSION

List Of Tables

LIST OF TABLES

Table 1. Eink Phone Annual Sales CAGR by Geographic Region (2020, 2024 & 2031) & ($ millions)
Table 2. Eink Phone Annual Sales CAGR by Country/Region (2020, 2024 & 2031) & ($ millions)
Table 3. Major Players of Black and white E Ink Screen
Table 4. Major Players of Color E Ink Screen
Table 5. Global Eink Phone Sales by Type (2020-2025) & (K Units)
Table 6. Global Eink Phone Sales Market Share by Type (2020-2025)
Table 7. Global Eink Phone Revenue by Type (2020-2025) & ($ million)
Table 8. Global Eink Phone Revenue Market Share by Type (2020-2025)
Table 9. Global Eink Phone Sale Price by Type (2020-2025) & (US$/Unit)
Table 10. Global Eink Phone Sale by Application (2020-2025) & (K Units)
Table 11. Global Eink Phone Sale Market Share by Application (2020-2025)
Table 12. Global Eink Phone Revenue by Application (2020-2025) & ($ million)
Table 13. Global Eink Phone Revenue Market Share by Application (2020-2025)
Table 14. Global Eink Phone Sale Price by Application (2020-2025) & (US$/Unit)
Table 15. Global Eink Phone Sales by Company (2020-2025) & (K Units)
Table 16. Global Eink Phone Sales Market Share by Company (2020-2025)
Table 17. Global Eink Phone Revenue by Company (2020-2025) & ($ millions)
Table 18. Global Eink Phone Revenue Market Share by Company (2020-2025)
Table 19. Global Eink Phone Sale Price by Company (2020-2025) & (US$/Unit)
Table 20. Key Manufacturers Eink Phone Producing Area Distribution and Sales Area
Table 21. Players Eink Phone Products Offered
Table 22. Eink Phone Concentration Ratio (CR3, CR5 and CR10) & (2023-2025)
Table 23. New Products and Potential Entrants
Table 24. Market M&A Activity & Strategy
Table 25. Global Eink Phone Sales by Geographic Region (2020-2025) & (K Units)
Table 26. Global Eink Phone Sales Market Share Geographic Region (2020-2025)
Table 27. Global Eink Phone Revenue by Geographic Region (2020-2025) & ($ millions)
Table 28. Global Eink Phone Revenue Market Share by Geographic Region (2020-2025)
Table 29. Global Eink Phone Sales by Country/Region (2020-2025) & (K Units)
Table 30. Global Eink Phone Sales Market Share by Country/Region (2020-2025)
Table 31. Global Eink Phone Revenue by Country/Region (2020-2025) & ($ millions)
Table 32. Global Eink Phone Revenue Market Share by Country/Region (2020-2025)
Table 33. Americas Eink Phone Sales by Country (2020-2025) & (K Units)
Table 34. Americas Eink Phone Sales Market Share by Country (2020-2025)
Table 35. Americas Eink Phone Revenue by Country (2020-2025) & ($ millions)
Table 36. Americas Eink Phone Sales by Type (2020-2025) & (K Units)
Table 37. Americas Eink Phone Sales by Application (2020-2025) & (K Units)
Table 38. APAC Eink Phone Sales by Region (2020-2025) & (K Units)
Table 39. APAC Eink Phone Sales Market Share by Region (2020-2025)
Table 40. APAC Eink Phone Revenue by Region (2020-2025) & ($ millions)
Table 41. APAC Eink Phone Sales by Type (2020-2025) & (K Units)
Table 42. APAC Eink Phone Sales by Application (2020-2025) & (K Units)
Table 43. Europe Eink Phone Sales by Country (2020-2025) & (K Units)
Table 44. Europe Eink Phone Revenue by Country (2020-2025) & ($ millions)
Table 45. Europe Eink Phone Sales by Type (2020-2025) & (K Units)
Table 46. Europe Eink Phone Sales by Application (2020-2025) & (K Units)
Table 47. Middle East & Africa Eink Phone Sales by Country (2020-2025) & (K Units)
Table 48. Middle East & Africa Eink Phone Revenue Market Share by Country (2020-2025)
Table 49. Middle East & Africa Eink Phone Sales by Type (2020-2025) & (K Units)
Table 50. Middle East & Africa Eink Phone Sales by Application (2020-2025) & (K Units)
Table 51. Key Market Drivers & Growth Opportunities of Eink Phone
Table 52. Key Market Challenges & Risks of Eink Phone
Table 53. Key Industry Trends of Eink Phone
Table 54. Eink Phone Raw Material
Table 55. Key Suppliers of Raw Materials
Table 56. Eink Phone Distributors List
Table 57. Eink Phone Customer List
Table 58. Global Eink Phone Sales Forecast by Region (2026-2031) & (K Units)
Table 59. Global Eink Phone Revenue Forecast by Region (2026-2031) & ($ millions)
Table 60. Americas Eink Phone Sales Forecast by Country (2026-2031) & (K Units)
Table 61. Americas Eink Phone Annual Revenue Forecast by Country (2026-2031) & ($ millions)
Table 62. APAC Eink Phone Sales Forecast by Region (2026-2031) & (K Units)
Table 63. APAC Eink Phone Annual Revenue Forecast by Region (2026-2031) & ($ millions)
Table 64. Europe Eink Phone Sales Forecast by Country (2026-2031) & (K Units)
Table 65. Europe Eink Phone Revenue Forecast by Country (2026-2031) & ($ millions)
Table 66. Middle East & Africa Eink Phone Sales Forecast by Country (2026-2031) & (K Units)
Table 67. Middle East & Africa Eink Phone Revenue Forecast by Country (2026-2031) & ($ millions)
Table 68. Global Eink Phone Sales Forecast by Type (2026-2031) & (K Units)
Table 69. Global Eink Phone Revenue Forecast by Type (2026-2031) & ($ millions)
Table 70. Global Eink Phone Sales Forecast by Application (2026-2031) & (K Units)
Table 71. Global Eink Phone Revenue Forecast by Application (2026-2031) & ($ millions)
Table 72. Hisense Basic Information, Eink Phone Manufacturing Base, Sales Area and Its Competitors
Table 73. Hisense Eink Phone Product Portfolios and Specifications
Table 74. Hisense Eink Phone Sales (K Units), Revenue ($ Million), Price (US$/Unit) and Gross Margin (2020-2025)
Table 75. Hisense Main Business
Table 76. Hisense Latest Developments
Table 77. BOOX Basic Information, Eink Phone Manufacturing Base, Sales Area and Its Competitors
Table 78. BOOX Eink Phone Product Portfolios and Specifications
Table 79. BOOX Eink Phone Sales (K Units), Revenue ($ Million), Price (US$/Unit) and Gross Margin (2020-2025)
Table 80. BOOX Main Business
Table 81. BOOX Latest Developments
Table 82. Bigme Basic Information, Eink Phone Manufacturing Base, Sales Area and Its Competitors
Table 83. Bigme Eink Phone Product Portfolios and Specifications
Table 84. Bigme Eink Phone Sales (K Units), Revenue ($ Million), Price (US$/Unit) and Gross Margin (2020-2025)
Table 85. Bigme Main Business
Table 86. Bigme Latest Developments

List Of Figures

LIST OF FIGURES

Figure 1. Picture of Eink Phone
Figure 2. Eink Phone Report Years Considered
Figure 3. Research Objectives
Figure 4. Research Methodology
Figure 5. Research Process and Data Source
Figure 6. Global Eink Phone Sales Growth Rate 2020-2031 (K Units)
Figure 7. Global Eink Phone Revenue Growth Rate 2020-2031 ($ millions)
Figure 8. Eink Phone Sales by Geographic Region (2020, 2024 & 2031) & ($ millions)
Figure 9. Eink Phone Sales Market Share by Country/Region (2024)
Figure 10. Eink Phone Sales Market Share by Country/Region (2020, 2024 & 2031)
Figure 11. Product Picture of Black and white E Ink Screen
Figure 12. Product Picture of Color E Ink Screen
Figure 13. Global Eink Phone Sales Market Share by Type in 2025
Figure 14. Global Eink Phone Revenue Market Share by Type (2020-2025)
Figure 15. Eink Phone Consumed in Youth (15-24 Years)
Figure 16. Global Eink Phone Market: Youth (15-24 Years) (2020-2025) & (K Units)
Figure 17. Eink Phone Consumed in Adults (25-54 Years)
Figure 18. Global Eink Phone Market: Adults (25-54 Years) (2020-2025) & (K Units)
Figure 19. Eink Phone Consumed in Seniors (55 Years and Over)
Figure 20. Global Eink Phone Market: Seniors (55 Years and Over) (2020-2025) & (K Units)
Figure 21. Global Eink Phone Sale Market Share by Application (2024)
Figure 22. Global Eink Phone Revenue Market Share by Application in 2025
Figure 23. Eink Phone Sales by Company in 2025 (K Units)
Figure 24. Global Eink Phone Sales Market Share by Company in 2025
Figure 25. Eink Phone Revenue by Company in 2025 ($ millions)
Figure 26. Global Eink Phone Revenue Market Share by Company in 2025
Figure 27. Global Eink Phone Sales Market Share by Geographic Region (2020-2025)
Figure 28. Global Eink Phone Revenue Market Share by Geographic Region in 2025
Figure 29. Americas Eink Phone Sales 2020-2025 (K Units)
Figure 30. Americas Eink Phone Revenue 2020-2025 ($ millions)
Figure 31. APAC Eink Phone Sales 2020-2025 (K Units)
Figure 32. APAC Eink Phone Revenue 2020-2025 ($ millions)
Figure 33. Europe Eink Phone Sales 2020-2025 (K Units)
Figure 34. Europe Eink Phone Revenue 2020-2025 ($ millions)
Figure 35. Middle East & Africa Eink Phone Sales 2020-2025 (K Units)
Figure 36. Middle East & Africa Eink Phone Revenue 2020-2025 ($ millions)
Figure 37. Americas Eink Phone Sales Market Share by Country in 2025
Figure 38. Americas Eink Phone Revenue Market Share by Country (2020-2025)
Figure 39. Americas Eink Phone Sales Market Share by Type (2020-2025)
Figure 40. Americas Eink Phone Sales Market Share by Application (2020-2025)
Figure 41. United States Eink Phone Revenue Growth 2020-2025 ($ millions)
Figure 42. Canada Eink Phone Revenue Growth 2020-2025 ($ millions)
Figure 43. Mexico Eink Phone Revenue Growth 2020-2025 ($ millions)
Figure 44. Brazil Eink Phone Revenue Growth 2020-2025 ($ millions)
Figure 45. APAC Eink Phone Sales Market Share by Region in 2025
Figure 46. APAC Eink Phone Revenue Market Share by Region (2020-2025)
Figure 47. APAC Eink Phone Sales Market Share by Type (2020-2025)
Figure 48. APAC Eink Phone Sales Market Share by Application (2020-2025)
Figure 49. China Eink Phone Revenue Growth 2020-2025 ($ millions)
Figure 50. Japan Eink Phone Revenue Growth 2020-2025 ($ millions)
Figure 51. South Korea Eink Phone Revenue Growth 2020-2025 ($ millions)
Figure 52. Southeast Asia Eink Phone Revenue Growth 2020-2025 ($ millions)
Figure 53. India Eink Phone Revenue Growth 2020-2025 ($ millions)
Figure 54. Australia Eink Phone Revenue Growth 2020-2025 ($ millions)
Figure 55. China Taiwan Eink Phone Revenue Growth 2020-2025 ($ millions)
Figure 56. Europe Eink Phone Sales Market Share by Country in 2025
Figure 57. Europe Eink Phone Revenue Market Share by Country (2020-2025)
Figure 58. Europe Eink Phone Sales Market Share by Type (2020-2025)
Figure 59. Europe Eink Phone Sales Market Share by Application (2020-2025)
Figure 60. Germany Eink Phone Revenue Growth 2020-2025 ($ millions)
Figure 61. France Eink Phone Revenue Growth 2020-2025 ($ millions)
Figure 62. UK Eink Phone Revenue Growth 2020-2025 ($ millions)
Figure 63. Italy Eink Phone Revenue Growth 2020-2025 ($ millions)
Figure 64. Russia Eink Phone Revenue Growth 2020-2025 ($ millions)
Figure 65. Middle East & Africa Eink Phone Sales Market Share by Country (2020-2025)
Figure 66. Middle East & Africa Eink Phone Sales Market Share by Type (2020-2025)
Figure 67. Middle East & Africa Eink Phone Sales Market Share by Application (2020-2025)
Figure 68. Egypt Eink Phone Revenue Growth 2020-2025 ($ millions)
Figure 69. South Africa Eink Phone Revenue Growth 2020-2025 ($ millions)
Figure 70. Israel Eink Phone Revenue Growth 2020-2025 ($ millions)
Figure 71. Turkey Eink Phone Revenue Growth 2020-2025 ($ millions)
Figure 72. GCC Countries Eink Phone Revenue Growth 2020-2025 ($ millions)
Figure 73. Manufacturing Cost Structure Analysis of Eink Phone in 2025
Figure 74. Manufacturing Process Analysis of Eink Phone
Figure 75. Industry Chain Structure of Eink Phone
Figure 76. Channels of Distribution
Figure 77. Global Eink Phone Sales Market Forecast by Region (2026-2031)
Figure 78. Global Eink Phone Revenue Market Share Forecast by Region (2026-2031)
Figure 79. Global Eink Phone Sales Market Share Forecast by Type (2026-2031)
Figure 80. Global Eink Phone Revenue Market Share Forecast by Type (2026-2031)
Figure 81. Global Eink Phone Sales Market Share Forecast by Application (2026-2031)
Figure 82. Global Eink Phone Revenue Market Share Forecast by Application (2026-2031)